Subtract 10/75 from 21/15, Solve 1 6/15

Subtract 10/75 from 21/15

1^st number: 1 6/15, 2^nd number: 10/75

21/15 - 10/75 is 19/15.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 75 is 75

Next, find the equivalent fraction of both fractional numbers with denominator 75
For the 1st fraction, since 15 × 5 = 75,
21/15 = 21 × 5/15 × 5 = 105/75
Likewise, for the 2nd fraction, since 75 × 1 = 75,
10/75 = 10 × 1/75 × 1 = 10/75
Subtract the two like fractions:
105/75 - 10/75 = 105 - 10/75 = 95/75
After reducing the fraction, the answer is 19/15
In mixed form: 14/15

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