Like and Unlike Denominators

Adding With Like Denominators

100

1/4 +  2/4=

What is 3/4

200

3/16  +  7/16 =

What is 10/16 or 5/8?

300

2/3 + 4/3=

What is 6/3 or 2?

400

8/15 + 4/15=

What is 12/15 or 4/5?

500

2/5 + 1/5=

What is 3/5?

Subtracting with like denominators

100

2/3 - 1/3=

What is 1/3?

200

2/5 - 1/5 =

What is 1/5?

300

6/7 - 3/7=

What is 3/7?

400

6/8 - 5/8 =

What is 1/8?

500

100/200-50/200=

What is 50/200 or 1/4?

Common Denominator

100

1/3 and 1/6

What is 18?

200

1/4 and 1/8

What is 32?

300

1/5 and 1/15?

What is 75?

400

1/6 and 1/12

What is 72?

500

1/3 and 1/9

What is 27?

Adding with unlike denominators

100

1/5 + 2/7=

What is 17/35?

200

This is the first step to adding fractions with unlike denominators.

What is finding the least common multiple?

300

After I multiply the denominators, I multiply the *********.

What is Numerator?

400

1/4 + 1/3 =

What is 7/12?

500

3/4 + 1/6=

What is 22/24 or 11/12?

Subtracting with unlike denominators

100

The bottom number of a fraction.

What is a denominator?

200

The top number of a fraction.

What is a numerator?

300

Subtracting fractions with unlike denominators is just like ****** fractions with unlike denominators.

What is adding?

400

2/5 - 1/3=

What is 1/15?

500

5/6 -1/4=

What is 14/24 or 7/12?