Subtract 81/15 from 5/2
1st number: 2 1/2, 2nd number: 5 6/15
5/2 - 81/15 is -29/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
5/2 = 5 × 15/2 × 15 = 75/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
81/15 = 81 × 2/15 × 2 = 162/30 - Subtract the two like fractions:
75/30 - 162/30 = 75 - 162/30 = -87/30 - After reducing the fraction, the answer is -29/10
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