Subtract 81/20 from 56/10
1st number: 5 6/10, 2nd number: 4 1/20
56/10 - 81/20 is 31/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
56/10 = 56 × 2/10 × 2 = 112/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Subtract the two like fractions:
112/20 - 81/20 = 112 - 81/20 = 31/20 - In mixed form: 111/20
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