Subtract 7/54 from 84/72, Solve 1 12/72

Subtract 7/54 from 84/72

1^st number: 1 12/72, 2^nd number: 7/54

84/72 - 7/54 is 28/27.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 72 × 3 = 216,
84/72 = 84 × 3/72 × 3 = 252/216
Likewise, for the 2nd fraction, since 54 × 4 = 216,
7/54 = 7 × 4/54 × 4 = 28/216
Subtract the two like fractions:
252/216 - 28/216 = 252 - 28/216 = 224/216
After reducing the fraction, the answer is 28/27
In mixed form: 11/27

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