Adding, Subtracting, Multiplying & Dividing Fractions (Remember to SIMPLIFY)

Adding Fractions

100

When adding fractions, you need to be sure they have THIS.

What is a common denomincator?

200

11/12 + 7/12

What is 1 1/2?

300

6 5/12 + 12 5/8

What is 19 1/24?

400

7 2/9 + (-1 1/3)

What is 5 8/9?

500

10 2/3 + 5 6/7

What is 16 11/21?

Subtracting Fractions

100

When subtracting fractions, you should use THIS to help you find the least common denominator of two fractions. 

What is the least common multiple (or LCM)?

200

5/20 - 11/20

What is -3/10?

300

18 1/9 - 1 3/7

What is 16 43/63?

400

-6 - 4 1/9

What is -10 1/9?

500

8 1/9 - (-1 3/7)

What is 9 34/63?

Multiplying Fractions

100

5/6 x 15/16

What is 25/32?

200

(-5/6) x 3/5

What is (-1/2)?

300

8/9 x 9/10

What is 4/5?

400

(-3 5/8) x 1/2

What is -1 13/16?

500

6 2/3 x 7 3/5

What is 50 2/3?

Dividing Fractions

100

KCF stands for THIS.

What is Keep, Change, Flip?

200

4 divided by 2/3

What is 6?

300

2/7 divided by 7

What is 2/49?

400

2/13 divided by 5/26

What is 4/5?

500

3 3/5 divided 4/5

What is 4 1/2?

Number Theory

100

THIS is 3 1/16 as an improper fraction.

What is 49/16?

200

THIS is 103/25 as a mixed number.

What is 4 3/25?

300

THIS expression is the prime factorization for 240.

What is 2 x 2 x 2 x 2 x 3 x 5?

400

THIS is the GCF for 27, 45, 63.

What is 9?

500

THIS is the LCM for 15, 75, 25.

What is 75?