Subtract 28/84 from 8/5, Solve 1 3/5

Subtract 28/84 from 8/5

1^st number: 1 3/5, 2^nd number: 28/84

8/5 - 28/84 is 19/15.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 5 × 84 = 420,
8/5 = 8 × 84/5 × 84 = 672/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
28/84 = 28 × 5/84 × 5 = 140/420
Subtract the two like fractions:
672/420 - 140/420 = 672 - 140/420 = 532/420
After reducing the fraction, the answer is 19/15
In mixed form: 14/15

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