Subtract 72/18 from 1/14, Solve 1/14

Subtract 72/18 from 1/14

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

1/14 - 72/18 is -55/14.

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,
1/14 = 1 × 9/14 × 9 = 9/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126
Subtract the two like fractions:
9/126 - 504/126 = 9 - 504/126 = -495/126
After reducing the fraction, the answer is -55/14

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