Subtract 15/12 from 1/5
1st number: 1/5, 2nd number: 1 3/12
1/5 - 15/12 is -21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
1/5 = 1 × 12/5 × 12 = 12/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Subtract the two like fractions:
12/60 - 75/60 = 12 - 75/60 = -63/60 - After reducing the fraction, the answer is -21/20
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