1. N5 Num Fractions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Multiplying Basic Fractions Add & Subtract basic Fractions Add & Sub Harder Fractions Top-Heavy / Mixed Fractions

2. N5 Num Starter Questions Starter Questions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com 8cm 10cm

3. N5 Num Mixed Fractions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.Understand what the terms fraction, top-heavy and mixed fraction are. 1.We are learning to convert fractions between Top- Heavy and Mixed Fraction. 2.Convert between top-heavy and mixed fraction. 3.Solve problems involving fractions.

4. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Fractions A fraction, like, where the numerator is bigger than the denominator is called a ‘Top-Heavy’ fraction. A number like, consisting of a ‘whole number’ part and a ‘fraction’ part is called a Mixed fraction

5. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Top Heavy to Mixed means seven thirds

6. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. NUMERATOR  DENOMINATOR Top Heavy to Mixed can be written as 7  3 remainder 1

7. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. NUMERATOR  DENOMINATOR Top Heavy to Mixed can be written as 17  5 remainder 2

8. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Changing a mixed fraction to a top-heavy. WHOLE NUMBER  DENOMINATOR then add NUMERATOR 5  4  3 7  5  2 Mixed to Top Heavy  23 quarters  37 fifths

9. www.mathsrevision.com N5 Num 17-Dec-15Created by Mr. Lafferty Maths Dept. Now try N5 Lifeskills Ex 1 Ch4 (page 38) www.mathsrevision.com Fractions

10. N5 Num Starter Questions Starter Questions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com 5cm 7cm

11. N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.Understand that to add and subtract fractions the denominators must be the same. 1.We are learning how to add and subtract basic fractions. 2.To be able to do simple fraction calculations. Add / Sub Fractions

12. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Add / Sub Fractions You can only add or subtract fractions if: DENOMINATORS ARE THE SAME NUMBER Example 1 Example 2

13. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Add Fractions When dealing with mixed fractions deal with ‘whole’ part first then the fraction part

14. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Subtract Fractions When dealing with mixed fractions deal with ‘whole’ part first then the fraction part

15. www.mathsrevision.com N5 Num 17-Dec-15Created by Mr. Lafferty Maths Dept. Now try N5 Lifeskills Ex 2 Ch4 (page 41) www.mathsrevision.com Fractions

16. N5 Num Starter Questions Starter Questions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com

17. N5 Num Harder Fractions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.Understand and apply rules for adding and subtracting fractions. 1.We are learning how to add and subtract fractions with different denominators. 2.Convert top heavy fractions to mixed fractions.

18. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Harder Fractions How can we add or subtract fractions that have different denominators Step 1 :Find the LCM for the denominators Step 2 :Convert to equivalent fractions Step 3 :Add or Subtract the numerator and simplify Before we can add or subtract they MUST have the same denominator

19. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Harder Fractions Example 1 Step 1 : Find LCM Step 2 : Equivalent Fractions Step 3 : Add/Subtract the numerator and simplify LCM of 2 and 4 4 44 + 21 4 3

20. www.mathsrevision.com N5 Num 1225 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Harder Fractions Example 1 Step 1 : Find LCM Step 2 : Equivalent Fractions Step 3 : Add/Subtract the numerator and simplify LCM of 5 and 6 30 30 - 13 30

21. www.mathsrevision.com N5 Num 910 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Harder Fractions Example 1 Step 1 : Find LCM Step 2 : Equivalent Fractions Step 3 : Add/Subtract the numerator and simplify LCM of 4 and 6 12 12 + 19 12 == 7 1

22. www.mathsrevision.com N5 Num 17-Dec-15Created by Mr. Lafferty Maths Dept. Now try N5 Lifeskills Ex 3 Ch4 (page 42) www.mathsrevision.com Fractions

23. N5 Num Starter Questions Starter Questions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com

24. N5 Num Multiplying Fractions 17-Dec-15Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.Understand the simply rules for multiplying basic and mixed fractions. 1.We are learning how to multiply basic and mixed fractions. 2.Apply rules correctly.

25. www.mathsrevision.com N5 Num 17-Dec-15Compiled by Mr. Lafferty Maths Dept. Multiplying Fractions Example 1 Example 2 Multiply basic fractions 1. Multiply the numerators 2. Multiply the denominators MTH 3-07b MTH 3-07c MTH 4-07b

26. www.mathsrevision.com N5 Num 17-Dec-15Created by Mr. Lafferty Maths Dept. Now try N5 Lifeskills Ex 4 Ch4 (page 42) www.mathsrevision.com Fractions Have you updated your Learning Log ? Are you on Target ? I can ?