Subtract 18/90 from 81/75
1st number: 1 6/75, 2nd number: 18/90
81/75 - 18/90 is 22/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
81/75 = 81 × 6/75 × 6 = 486/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
18/90 = 18 × 5/90 × 5 = 90/450 - Subtract the two like fractions:
486/450 - 90/450 = 486 - 90/450 = 396/450 - After reducing the fraction, the answer is 22/25
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