Subtract 90/49 from 81/48, Solve 1 33/48

Subtract 90/49 from 81/48

1^st number: 1 33/48, 2^nd number: 1 41/49

81/48 - 90/49 is -117/784.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 49 is 2352

Next, find the equivalent fraction of both fractional numbers with denominator 2352
For the 1st fraction, since 48 × 49 = 2352,
81/48 = 81 × 49/48 × 49 = 3969/2352
Likewise, for the 2nd fraction, since 49 × 48 = 2352,
90/49 = 90 × 48/49 × 48 = 4320/2352
Subtract the two like fractions:
3969/2352 - 4320/2352 = 3969 - 4320/2352 = -351/2352
After reducing the fraction, the answer is -117/784

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