Subtract 27/20 from 42/6
1st number: 7 0/6, 2nd number: 1 7/20
42/6 - 27/20 is 113/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
42/6 = 42 × 10/6 × 10 = 420/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
27/20 = 27 × 3/20 × 3 = 81/60 - Subtract the two like fractions:
420/60 - 81/60 = 420 - 81/60 = 339/60 - After reducing the fraction, the answer is 113/20
- In mixed form: 513/20
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