Subtract 30/20 from 21/60
1st number: 21/60, 2nd number: 1 10/20
21/60 - 30/20 is -23/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
30/20 = 30 × 3/20 × 3 = 90/60 - Subtract the two like fractions:
21/60 - 90/60 = 21 - 90/60 = -69/60 - After reducing the fraction, the answer is -23/20
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