Subtract 7/90 from 81/49
1st number: 1 32/49, 2nd number: 7/90
81/49 - 7/90 is 6947/4410.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
81/49 = 81 × 90/49 × 90 = 7290/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
7/90 = 7 × 49/90 × 49 = 343/4410 - Subtract the two like fractions:
7290/4410 - 343/4410 = 7290 - 343/4410 = 6947/4410 - In mixed form: 12537/4410
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