5/8 x 40 = 25
One eighth of 40 is 5. So 5 eighths of 40 = 5 x 5 = 25.
3/8 x 40 = 15
35/40 - 4/40 = 31/40
One eighth is 1/8. Two eighths (2/8) is two one eighths, that is, (1/8) + (1/8) or 2 x (1/8). So five eighths (5/8) would be five one eighths, that is, (1/8) + (1/8) + (1/8) + (1/8) + (1/8) or 5 x (1/8). There are five eighths (1/8) in five eighths (5/8).
3/8 x 5/5 = 15/40 Answer: three-eighths
40. 8/8 in 1 x 5 = 40/8
7/8 x 40 is 35.
35/40 - 4/40 = 31/40
As an equation four fifths of seven eighths is x= (4/5)x(7/8) This reduces to: x=(4x5)/(7x8) or x=(28/40) Both numerator and denominator can be divided by 4 So: x=(28/4)/(40/4) Which reduces to: x= 7/10
37
27/40