Subtract 28/21 from 14/10, Solve 1 4/10

Subtract 28/21 from 14/10

1^st number: 1 4/10, 2^nd number: 1 7/21

14/10 - 28/21 is 1/15.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
14/10 = 14 × 21/10 × 21 = 294/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
28/21 = 28 × 10/21 × 10 = 280/210
Subtract the two like fractions:
294/210 - 280/210 = 294 - 280/210 = 14/210
After reducing the fraction, the answer is 1/15

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