2/5 = 8/20 and 3/10 = 6/20 which = add the numerator 14 so 14/20 and will have 6 pints left over so she will need to buy 8 pints
x^a / x^b = x^(a-b)
so here its x^( (5/6)- (1/6) )
= x^ 4/6 or ^2/3
Associative property Says that you can add or multiply regardless of how the numbers are group
1 yd equals 3 feet. 1 yd equals 36 inches.
I believe that answer is 31
