1. CRCT Test Prep

2. Parts of a Whole Parts of a whole can be expressed as a fraction or a decimal. Example 1: This circle is divided into 4 parts. Shade 1 part to express ¼

3. Parts of a Whole Continued A decimal can also be used to express parts of a whole..5 of this strip is shaded dark blue. $0.90 is 9/10 of a dollar.

4. Solve What fraction of the circle is shaded? A.3/8 B.½ C.5/8 D.¾

5. Solve Mary had $.30. What fraction of a dollar is that? A. 3/100 B. 3/10 C. 3.00 D. 30

6. Parts of a group Fractions can be parts of a group. There are 5 shapes total. 5 will be your denominator. What fraction of the shapes are hearts? 2/5 What fraction of the shapes are smiley faces? 3/5

7. Finding the Fraction of a Group What is 1/3 of 6??? 1 st step: Think 3 x ____ = 6??? 2 2 nd step: Multiply 2 x numerator, which is 1. So 2 x 1 = 2 Answer is 2.

8. Solve What is 3/5 of 10??? 1 st step: 5 x ___ = 10. 2 2 nd step: 2 x 3 = 6

9. Solve What is 2/3 of 9??

10. Solve these What is 4/5 of 20??? What is 3/8 of 24????

11. Equivalent Fractions Look at the strips. What fraction is equal to ½??? 4/5???? 1/3????

12. How do I make an equivalent Fraction?? 3 -=- 48 Step 1: 4 to 8, Is it getting bigger or smaller. Bigger, so you multiply. 4 x __ = 8??? 2 Step 2: Now multiply the numerator (3) by 2. 3 x 2 = 6 ¾ = 6/8

13. How do I make an equivalent fraction??? 4 -=- 126 Step 1: 12 to 6, Is it getting bigger or smaller. Smaller, so you divide. 12 divided by ____ = 6 (2) Step 2: Now divide the numerator (4) by 2. 4 divided by 2 = 2 4/12 = 2/6

14. Comparing Fractions 37 -- 59 Cross multiply, down to up. 5 x 7 = 35; 9 x 3 = 27. 7/9 is bigger

15. Try this: 68 -- 910 14 -- 37

16. Putting Fractions in order, least to greatest Use cross multiplying to compare. 223 --- 344

17. Try this 749 --- 9610 947 --- 12108

18. Adding and subtracting fractions When adding or subtracting fractions, add or subtract the numerator. The denominator stays the same. 347 -+-=- 888

19. Try These: 82 -+-= 1212 53 ---= 77

20. Decimals Remember- the spot to the right of a decimal is called a tenth. 0.7 is called 7/10 or seven tenths 0.4 is called 4/10 or four tenths 4.2 is called four and two tenths or 4 2/10 9.3 is called nine and three tenths or 9 3/10

21. Comparing Decimals Which is bigger?? 0.3 or 0.6 Think in terms of money- Which is bigger, 30 cents or 60 cents??? 0.7 or 0.1 0.4 or 0.6 0.1 or o.3

22. Comparing Fractions and Decimals Which is bigger, 4/10 or 0.7 Hint: Change 4/10 to a decimal to compare. 0.7 is bigger. Compare: 0.5 or 8 - 10

23. Adding and Subtracting Decimals Line up the decimal first: 6.7 + 34.1