1/8 + 1/8

1/8 + 1/4

1/4 + 1/4

1/2 + 1/8

1/2 + 1/4

3/8 + 1/4

3/8 + 3/8

1/2 + 3/8

8 Sector Blank

Worksheet

12 Sector Circle

1/2 + 1/12

1/2 + 1/6

1/2 + 1/4

1/2 + 1/3

1/3 + 1/12

1/3 + 1/6

1/3 + 1/4

1/4 + 1/6

1/4 + 1/12

1/6 + 1/12

12 Sector Blank

Worksheet

REMEMBER: Numerator Denominator Adding/subtracting fractions with the same denominator is easy. You simply add/subtract the numerators. Addition/Subtraction of Fractions Num/Den

Adding and subtracting fractions with the same denominator is easy. You simply add or subtract the numerators. Same Den

Adding/subtracting fractions with different denominators is more complicated. You need to find the Lowest Common Multiple (LCM) of the denominators first. Remember: The Lowest Common Multiple of 2 or more numbers is the smallest number that the given numbers will divide into without remainder Multiples of 3 and 4 12 is the LCM Find the lowest common multiple of the following numbers: 3 and 45 and 203 and Multiples of 5 and is the LCM Multiples of 3 and 8 24 is the LCM LCM

+ + = Multiples of 3 and 4 12 is the LCM Equivalent + Diagram 1

+ Multiples of 5 and is the LCM Equivalent + = + Diagram 2

Multiples of 4 and 6 12 is the LCM + Equivalent = + Diagram 3

Example questions Examples + 1

Example questions Examples + 2

- - = Multiples of 3 and 4 12 is the LCM Equivalent - Diagram 1

- - = Multiples of 3 and 4 12 is the LCM Equivalent

- Multiples of 5 and is the LCM Equivalent - = - Diagram 2

- Multiples of 5 and is the LCM Equivalent - =

Multiples of 4 and 6 12 is the LCM - Equivalent = -Diagram 3

Multiples of 4 and 6 12 is the LCM - Equivalent =

Example questions Examples - 1

Example questions Examples - 2