Subtract 18/80 from 28/5, Solve 5 3/5

Subtract 18/80 from 28/5

1^st number: 5 3/5, 2^nd number: 18/80

28/5 - 18/80 is 43/8.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 5 × 16 = 80,
28/5 = 28 × 16/5 × 16 = 448/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80
Subtract the two like fractions:
448/80 - 18/80 = 448 - 18/80 = 430/80
After reducing the fraction, the answer is 43/8
In mixed form: 53/8

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