Subtract 40/56 from 90/5
1st number: 18 0/5, 2nd number: 40/56
90/5 - 40/56 is 121/7.
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,
90/5 = 90 × 56/5 × 56 = 5040/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
40/56 = 40 × 5/56 × 5 = 200/280 - Subtract the two like fractions:
5040/280 - 200/280 = 5040 - 200/280 = 4840/280 - After reducing the fraction, the answer is 121/7
- In mixed form: 172/7
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