Subtract 81/30 from 7/14
1st number: 7/14, 2nd number: 2 21/30
7/14 - 81/30 is -11/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
7/14 = 7 × 15/14 × 15 = 105/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
81/30 = 81 × 7/30 × 7 = 567/210 - Subtract the two like fractions:
105/210 - 567/210 = 105 - 567/210 = -462/210 - After reducing the fraction, the answer is -11/5
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