Subtract 21/60 from 63/45
1st number: 1 18/45, 2nd number: 21/60
63/45 - 21/60 is 21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
63/45 = 63 × 4/45 × 4 = 252/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
21/60 = 21 × 3/60 × 3 = 63/180 - Subtract the two like fractions:
252/180 - 63/180 = 252 - 63/180 = 189/180 - After reducing the fraction, the answer is 21/20
- In mixed form: 11/20
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