Subtract 21/56 from 30/20
1st number: 1 10/20, 2nd number: 21/56
30/20 - 21/56 is 9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
30/20 = 30 × 14/20 × 14 = 420/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
420/280 - 105/280 = 420 - 105/280 = 315/280 - After reducing the fraction, the answer is 9/8
- In mixed form: 11/8
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