The amount of paint Maria used is:
[tex]\frac{3}{5}\cdot4=\frac{3\cdot4}{5}=\frac{12}{5}=\frac{10+2}{5}=\frac{10}{5}+\frac{2}{5}=2\frac{2}{5}[/tex]
Then, she has 4 - 2 2/5 pints remaining.
(I replaced 4 by 3 5/5)
The amount of paint Emma used is
[tex]\frac{3}{4}\cdot4=\frac{12}{4}=3[/tex]
Then, she has 4 - 3 = 1 pint remaining
The total remaining paint is 1 3/5 + 1 = 2 3/5 pints
