Subtract 15/12 from 8/20
1st number: 8/20, 2nd number: 1 3/12
8/20 - 15/12 is -17/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
8/20 = 8 × 3/20 × 3 = 24/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Subtract the two like fractions:
24/60 - 75/60 = 24 - 75/60 = -51/60 - After reducing the fraction, the answer is -17/20
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