Subtract 18/56 from 90/20
1st number: 4 10/20, 2nd number: 18/56
90/20 - 18/56 is 117/28.
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,
90/20 = 90 × 14/20 × 14 = 1260/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
18/56 = 18 × 5/56 × 5 = 90/280 - Subtract the two like fractions:
1260/280 - 90/280 = 1260 - 90/280 = 1170/280 - After reducing the fraction, the answer is 117/28
- In mixed form: 45/28
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