Subtract 54/9 from 72/49, Solve 1 23/49

Subtract 54/9 from 72/49

1^st number: 1 23/49, 2^nd number: 6 0/9

72/49 - 54/9 is -222/49.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441

Next, find the equivalent fraction of both fractional numbers with denominator 441
For the 1st fraction, since 49 × 9 = 441,
72/49 = 72 × 9/49 × 9 = 648/441
Likewise, for the 2nd fraction, since 9 × 49 = 441,
54/9 = 54 × 49/9 × 49 = 2646/441
Subtract the two like fractions:
648/441 - 2646/441 = 648 - 2646/441 = -1998/441
After reducing the fraction, the answer is -222/49

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