A recipe calls for 3/4 cup of flour and you want to only make half of the recipe. How many cups of flour do you need?

Answer 1

1/2 x 3/4 = 3/8 cup for half a recipe

(1/2)(3/4) = (1)(3)/(2)(4) = 3/8

multiply the numerators together, and divide that by multiplying the denominators together: 1x3 over 2x4 = 3/8

or

3/4/2 = 3/8

or half of 3/4 is (3/2)/4 = 1.5/4 = 3/8

or do it all in decimals

3/4 = .750

.750/2 = 0.375 which = 3/8