Question

Megan ate 3/4 of a cookie. wrote and equivalent fraction for the amount of cookie Megan didn't eat

Answer 1

4/4 - 3/4 = 1/4
2/8 is equal to 1/4
and 3/12
and 4/16

Answer 2

1 cookie=number/number where number stays constant so
1 cookie=1/1,2/2,3/3,4/4,5/5, etc

so if 3/4 of cookie eaten
the bottom number tells how many in the whole or 1 so
whole=4/4
4/4-3/4=1/4
1/4=not eaten
equivilent, multiply top and bottom number by same number
1/4 times 2/2=2/8
1/4 times 4/4=4/16