Subtract 3/54 from 15/7, Solve 2 1/7

Subtract 3/54 from 15/7

1^st number: 2 1/7, 2^nd number: 3/54

15/7 - 3/54 is 263/126.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
15/7 = 15 × 54/7 × 54 = 810/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
3/54 = 3 × 7/54 × 7 = 21/378
Subtract the two like fractions:
810/378 - 21/378 = 810 - 21/378 = 789/378
After reducing the fraction, the answer is 263/126
In mixed form: 211/126

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