Question

A man won a lotto jackpot and he spent 2/5 of the money on luxury cars and 1/4 on buying a house. What fraction of his lotto earnings is remaining?​

Answer 1

In total, he spent $\frac{2}{5}+\frac{1}{4}$ of his prize. Hence, the fraction of the remaining money is:

$1-\frac{2}{5}-\frac{1}{4}=\frac{20-8-5}{20}=\boxed{\frac{7}{20}}$