Subtract 21/20 from 27/12
1st number: 2 3/12, 2nd number: 1 1/20
27/12 - 21/20 is 6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
27/12 = 27 × 5/12 × 5 = 135/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Subtract the two like fractions:
135/60 - 63/60 = 135 - 63/60 = 72/60 - After reducing the fraction, the answer is 6/5
- In mixed form: 11/5
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