Question

Susan was supposed to use 5/4 of a cup of butter

Answer 1

Answer:

$a.\ \dfrac{3}{5}$

Step-by-step explanation:

We can see the fractions $\frac{5}{4}$ and $\frac{3}{4}$ of cups.

It can be seen that denominator has 4 i.e. the fraction $\frac{1}{4}$.

Let us suppose, a unit is equal to $\frac{1}4$ of a cup.

Susan was supposed to use $\frac{5}{4}$ of a cup.

i.e. 5 units of butter was to be used.

But, actual recipe has only 3 units of butter.

$\text{Fraction of butter used} = \dfrac{\text{Units of butter used}}{\text{Unit of butter Susan was supposed to use}}$

a. $\text{Fraction of butter used} = \dfrac{3}{5}$

Alternatively, we could have directly divided the given fractions:

$\dfrac{\dfrac{3}{4}}{\dfrac{5}{4}} = \dfrac{3}{5}$