Subtract 42/20 from 56/8
1st number: 7 0/8, 2nd number: 2 2/20
56/8 - 42/20 is 49/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
56/8 = 56 × 5/8 × 5 = 280/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
42/20 = 42 × 2/20 × 2 = 84/40 - Subtract the two like fractions:
280/40 - 84/40 = 280 - 84/40 = 196/40 - After reducing the fraction, the answer is 49/10
- In mixed form: 49/10
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