47 is the average of 55, 56 and 30.
55.143
55.4
56 - 55 = 1
56
(56/55) / (77/40) = (56/55) * (40/77) =56*40/(55*77) = 8*40/(55*11) = 8*8/(11*11) = 64/121
56/55 is already in its simplest form
There are 3 ways. 30/56, 30 to 56, and 30 : 56.
30% off of 55 = 38.530% off of 55= 30% discount applied to 55= 55 - (30% * 55)= 55 - (0.30 * 55)= 55 - 16.5= 38.5
55 + 1 = 5654 + 2 = 5653 + 3 = 56...10 + 46 = 569 + 47 = 568 + 48 = 56...1 + 55 = 56
7/56 + 48/56 = 55/56
-55
56