Subtract 90/56 from 45/70
1st number: 45/70, 2nd number: 1 34/56
45/70 - 90/56 is -27/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
45/70 = 45 × 4/70 × 4 = 180/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Subtract the two like fractions:
180/280 - 450/280 = 180 - 450/280 = -270/280 - After reducing the fraction, the answer is -27/28
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