Hello there! Your answer would be: She needs to borrow 1 [tex]\frac{1}{8}[/tex] cups.
We first need to find how much she needs, & subtract it how much she has.
Okay, so we need to start by multiplying both sides of 3/4
[tex]\frac{3}{4}[/tex] × 3 = [tex]\frac{9}{4}[/tex]
Next, convert 4ths to 8ths by multiplying the denominator and numerator by [tex]\frac{2}{2}[/tex].
[tex]\frac{9}{4}[/tex] × [tex]\frac{2}{2}[/tex] = [tex]\frac{18}{8}[/tex]
Now that we have that, let's convert what she has, 1 [tex]\frac{1}{8}[/tex] cups into a mixed fraction to make the subtraction easier.
Well, there's 1 whole and 1 leftover, so we are left with [tex]\frac{18}{8}[/tex].
So, now we subtract [tex]\frac{9}{8}[/tex] from [tex]\frac{18}{8}[/tex].
[tex]\frac{18}{8}[/tex] - [tex]\frac{9}{8}[/tex] = [tex]\frac{9}{8}[/tex].
Converting back into a mixed number, we get 1 [tex]\frac{1}{8}[/tex] cups left over, or, the amount that she needs to borrow. I hope this helps, and have a great rest of your day! <3
