five-eights is one-eigtht larger than one-half...which, after converting to a common denominator, is four-eights.
One and a half is twelve eights.plus five eights, is seventeen eights. That is two and one eighth in total, or 2.125 in decimal.
The answer is 1.425 .
Five eights plus seven eights is twelve eights. 12/8 is 8/8 and 4/8 is 1 4/8 is 1 1/2 (one and a half)
Divide it and it should be 8 and a remainder of 1.
Five and seven eighths