Answer:
Francesca had
money left for gift C.
Explanation:
Given:
Total money to spent on gift = $20
Money Spent on gift A =

can Rewritten as

Money Spent on gift A =

Money Spent on gift B =

can Rewritten as

Money Spent on gift B =

We need To find the Money left for gift C.
Solution:
Money left for gift C can be calculated by subtracting Money Spent on gift A and Money Spent on gift B with Total Money spent on gifts.
Framing in equation form we get;
Money left for gift C =

Now taking LCM for making the denominator common we get;
Money left for gift C =

Hence Francesca had
money left for gift C.