Subtract 54/49 from 81/24, Solve 3 9/24

Subtract 54/49 from 81/24

1^st number: 3 9/24, 2^nd number: 1 5/49

81/24 - 54/49 is 891/392.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 49 is 1176

Next, find the equivalent fraction of both fractional numbers with denominator 1176
For the 1st fraction, since 24 × 49 = 1176,
81/24 = 81 × 49/24 × 49 = 3969/1176
Likewise, for the 2nd fraction, since 49 × 24 = 1176,
54/49 = 54 × 24/49 × 24 = 1296/1176
Subtract the two like fractions:
3969/1176 - 1296/1176 = 3969 - 1296/1176 = 2673/1176
After reducing the fraction, the answer is 891/392
In mixed form: 2107/392

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