Subtract 49/18 from 14/21, Solve 14/21

Subtract 49/18 from 14/21

1^st number: 14/21, 2^nd number: 2 13/18

14/21 - 49/18 is -37/18.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 21 × 6 = 126,
14/21 = 14 × 6/21 × 6 = 84/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
49/18 = 49 × 7/18 × 7 = 343/126
Subtract the two like fractions:
84/126 - 343/126 = 84 - 343/126 = -259/126
After reducing the fraction, the answer is -37/18

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