Subtract 21/5 from 90/56
1st number: 1 34/56, 2nd number: 4 1/5
90/56 - 21/5 is -363/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Likewise, for the 2nd fraction, since 5 × 56 = 280,
21/5 = 21 × 56/5 × 56 = 1176/280 - Subtract the two like fractions:
450/280 - 1176/280 = 450 - 1176/280 = -726/280 - After reducing the fraction, the answer is -363/140
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