Subtract 90/7 from 54/48, Solve 1 6/48

Subtract 90/7 from 54/48

1^st number: 1 6/48, 2^nd number: 12 6/7

54/48 - 90/7 is -657/56.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 7 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 48 × 7 = 336,
54/48 = 54 × 7/48 × 7 = 378/336
Likewise, for the 2nd fraction, since 7 × 48 = 336,
90/7 = 90 × 48/7 × 48 = 4320/336
Subtract the two like fractions:
378/336 - 4320/336 = 378 - 4320/336 = -3942/336
After reducing the fraction, the answer is -657/56

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