Question

a painter 1/3 of a house on Monday and 1/4 of the house on tuesday. how much of the house is left to be painted.

Answer 1

$1 - \dfrac{1}{3} - \dfrac{1}{4} = \dfrac{12}{12} = \dfrac{4}{12} - \dfrac{3}{12} = \dfrac{5}{12}$

Answer: 5/12 of the house is left.