Subtract 2/10 from 21/14, Solve 1 7/14

Subtract 2/10 from 21/14

1^st number: 1 7/14, 2^nd number: 2/10

21/14 - 2/10 is 13/10.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 10 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70
Likewise, for the 2nd fraction, since 10 × 7 = 70,
2/10 = 2 × 7/10 × 7 = 14/70
Subtract the two like fractions:
105/70 - 14/70 = 105 - 14/70 = 91/70
After reducing the fraction, the answer is 13/10
In mixed form: 13/10

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