1-106 lesson 1.2.5

Rewrite each expression as a single fraction.

A. 3/8 + 1/8. B. 4/5 + 3/4. C. 6/7 - 2/5

A) 1/2

B) 31/20

C) 16/35

Step-by-step explanation:

For A, I added 3 plus 1 and kept the denominator 8. Then I simplified.

For B, I multiplied 4/5 by 4/4 and 3/4 by 5/5 so that they would share the denominator 20. Then I added the numerators.

For C, I multiplied 6/7 by 5/5 and 2/5 by 7/7 so that they would share the denominator 35. Then I subtracted the numerators.

A. 4/8 B. 31/20 C. 16/35