2/3 of 1 1/2 = 1 quart blue paint
5/6 of 3 3/5 = 3 quarts red paint
1 quart blue paint + 3 quarts red paint = 4 quarts purple paint
23.6/7
=3.371429 this is the final answer
Youve already written it in words though
I believe the answer is 9x ( 2 + 7) = +9 x 2) + (9 x 7)