Subtract 81/15 from 72/14
1st number: 5 2/14, 2nd number: 5 6/15
72/14 - 81/15 is -9/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
72/14 = 72 × 15/14 × 15 = 1080/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
81/15 = 81 × 14/15 × 14 = 1134/210 - Subtract the two like fractions:
1080/210 - 1134/210 = 1080 - 1134/210 = -54/210 - After reducing the fraction, the answer is -9/35
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