Subtract 21/60 from 30/15
1st number: 2 0/15, 2nd number: 21/60
30/15 - 21/60 is 33/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
30/15 = 30 × 4/15 × 4 = 120/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Subtract the two like fractions:
120/60 - 21/60 = 120 - 21/60 = 99/60 - After reducing the fraction, the answer is 33/20
- In mixed form: 113/20
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