Subtract 72/28 from 7/18
1st number: 7/18, 2nd number: 2 16/28
7/18 - 72/28 is -275/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
7/18 = 7 × 14/18 × 14 = 98/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
72/28 = 72 × 9/28 × 9 = 648/252 - Subtract the two like fractions:
98/252 - 648/252 = 98 - 648/252 = -550/252 - After reducing the fraction, the answer is -275/126
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