Subtract 6/81 from 28/7, Solve 4 0/7

Subtract 6/81 from 28/7

1^st number: 4 0/7, 2^nd number: 6/81

28/7 - 6/81 is 106/27.

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,
28/7 = 28 × 81/7 × 81 = 2268/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
6/81 = 6 × 7/81 × 7 = 42/567
Subtract the two like fractions:
2268/567 - 42/567 = 2268 - 42/567 = 2226/567
After reducing the fraction, the answer is 106/27
In mixed form: 325/27

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