Question

Express in lowest terms:
15/18
21/35
-5/15
36/48
-42/28

Answer 1

5/6

3/5

1/3

6/8 or3/4

3/2

Explanation:

just see which multiplication can divide both the numbers with and can use LCM too

Answer 2

15/18 = (3*5)/(3*6) = 5/6

21/35 = (7*3)/(7*5) = 3/5

-5/151 = N/A, can't simplify to lowest terms

36/48 = (12*3)/(12*4) = 3/4

-42/28 = - ((14*3)/(14*2)) = -3/2