Subtract 81/63 from 20/50
1st number: 20/50, 2nd number: 1 18/63
20/50 - 81/63 is -31/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 63 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 50 × 63 = 3150,
20/50 = 20 × 63/50 × 63 = 1260/3150 - Likewise, for the 2nd fraction, since 63 × 50 = 3150,
81/63 = 81 × 50/63 × 50 = 4050/3150 - Subtract the two like fractions:
1260/3150 - 4050/3150 = 1260 - 4050/3150 = -2790/3150 - After reducing the fraction, the answer is -31/35
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