Subtract 72/49 from 7/90
1st number: 7/90, 2nd number: 1 23/49
7/90 - 72/49 is -6137/4410.
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,
7/90 = 7 × 49/90 × 49 = 343/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
72/49 = 72 × 90/49 × 90 = 6480/4410 - Subtract the two like fractions:
343/4410 - 6480/4410 = 343 - 6480/4410 = -6137/4410
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