Les baked 48 cookies for the bake sale at school, and sold 36 of them. in fraction form, how many cookies did Les have left?

Les sold 36 of 48.

          36/48

Step-by-step explanation:

36 over 48  reduces to 3/4.

she sold 3/4 of the cookies.

1/4

Step-by-step explanation:

48/12 = 4

36/12 = 3

48- 36 = 12

if you start with 48 and end with 12 you have 1/4 of th cookies left

x+y=90

x=30-y=x

step-by-step explanation:

if you understand you will get the answer