Subtract 21/60 from 42/5
1st number: 8 2/5, 2nd number: 21/60
42/5 - 21/60 is 161/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
42/5 = 42 × 12/5 × 12 = 504/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Subtract the two like fractions:
504/60 - 21/60 = 504 - 21/60 = 483/60 - After reducing the fraction, the answer is 161/20
- In mixed form: 81/20
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