Subtract 49/10 from 14/21, Solve 14/21

Subtract 49/10 from 14/21

1^st number: 14/21, 2^nd number: 4 9/10

14/21 - 49/10 is -127/30.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
49/10 = 49 × 21/10 × 21 = 1029/210
Subtract the two like fractions:
140/210 - 1029/210 = 140 - 1029/210 = -889/210
After reducing the fraction, the answer is -127/30

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