Subtract 90/81 from 15/50
1st number: 15/50, 2nd number: 1 9/81
15/50 - 90/81 is -73/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 81 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 50 × 81 = 4050,
15/50 = 15 × 81/50 × 81 = 1215/4050 - Likewise, for the 2nd fraction, since 81 × 50 = 4050,
90/81 = 90 × 50/81 × 50 = 4500/4050 - Subtract the two like fractions:
1215/4050 - 4500/4050 = 1215 - 4500/4050 = -3285/4050 - After reducing the fraction, the answer is -73/90
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