Subtract 21/56 from 18/5
1st number: 3 3/5, 2nd number: 21/56
18/5 - 21/56 is 129/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
18/5 = 18 × 56/5 × 56 = 1008/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
1008/280 - 105/280 = 1008 - 105/280 = 903/280 - After reducing the fraction, the answer is 129/40
- In mixed form: 39/40
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