Subtract 36/21 from 14/18, Solve 14/18

Subtract 36/21 from 14/18

1^st number: 14/18, 2^nd number: 1 15/21

14/18 - 36/21 is -59/63.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
36/21 = 36 × 6/21 × 6 = 216/126
Subtract the two like fractions:
98/126 - 216/126 = 98 - 216/126 = -118/126
After reducing the fraction, the answer is -59/63

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