Question

If 1/2 of a stick of butter will be used for 3/4 of a batch of cookies, what fraction of a stick of butter will be needed for a complete batch of cookies?? is it 1 1/4 or 2/3

Answer 1

Let x be the fraction that will be needed for a complete batch of cookies

1/2 butter = 3/4 cookies

x = 1

cross-multiply

3/4 x = 1/2

Multiply both-side of the equation by 4/3

x = 1/2 (4/3)

= 2/3

Hence, 2/3 stick of butter is needed for a complete batch of cookies