Subtract 50/49 from 81/90
1st number: 81/90, 2nd number: 1 1/49
81/90 - 50/49 is -59/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
81/90 = 81 × 49/90 × 49 = 3969/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
50/49 = 50 × 90/49 × 90 = 4500/4410 - Subtract the two like fractions:
3969/4410 - 4500/4410 = 3969 - 4500/4410 = -531/4410 - After reducing the fraction, the answer is -59/490
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