Subtract 21/60 from 90/42
1st number: 2 6/42, 2nd number: 21/60
90/42 - 21/60 is 251/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
90/42 = 90 × 10/42 × 10 = 900/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420 - Subtract the two like fractions:
900/420 - 147/420 = 900 - 147/420 = 753/420 - After reducing the fraction, the answer is 251/140
- In mixed form: 1111/140
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