Subtract 3/28 from 20/15, Solve 1 5/15

Subtract 3/28 from 20/15

1^st number: 1 5/15, 2^nd number: 3/28

20/15 - 3/28 is 103/84.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
20/15 = 20 × 28/15 × 28 = 560/420
Likewise, for the 2nd fraction, since 28 × 15 = 420,
3/28 = 3 × 15/28 × 15 = 45/420
Subtract the two like fractions:
560/420 - 45/420 = 560 - 45/420 = 515/420
After reducing the fraction, the answer is 103/84
In mixed form: 119/84

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