Subtract 48/81 from 8/7, Solve 1 1/7

Subtract 48/81 from 8/7

1^st number: 1 1/7, 2^nd number: 48/81

8/7 - 48/81 is 104/189.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567

Next, find the equivalent fraction of both fractional numbers with denominator 567
For the 1st fraction, since 7 × 81 = 567,
8/7 = 8 × 81/7 × 81 = 648/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
48/81 = 48 × 7/81 × 7 = 336/567
Subtract the two like fractions:
648/567 - 336/567 = 648 - 336/567 = 312/567
After reducing the fraction, the answer is 104/189

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