Subtract 72/18 from 4/14, Solve 4/14

Subtract 72/18 from 4/14

1^st number: 4/14, 2^nd number: 4 0/18

4/14 - 72/18 is -26/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
4/14 = 4 × 9/14 × 9 = 36/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126
Subtract the two like fractions:
36/126 - 504/126 = 36 - 504/126 = -468/126
After reducing the fraction, the answer is -26/7

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