Subtract 81/50 from 50/90
1st number: 50/90, 2nd number: 1 31/50
50/90 - 81/50 is -479/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
50/90 = 50 × 5/90 × 5 = 250/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
81/50 = 81 × 9/50 × 9 = 729/450 - Subtract the two like fractions:
250/450 - 729/450 = 250 - 729/450 = -479/450
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