Subtract 2/81 from 28/8, Solve 3 4/8

Subtract 2/81 from 28/8

1^st number: 3 4/8, 2^nd number: 2/81

28/8 - 2/81 is 563/162.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648

Next, find the equivalent fraction of both fractional numbers with denominator 648
For the 1st fraction, since 8 × 81 = 648,
28/8 = 28 × 81/8 × 81 = 2268/648
Likewise, for the 2nd fraction, since 81 × 8 = 648,
2/81 = 2 × 8/81 × 8 = 16/648
Subtract the two like fractions:
2268/648 - 16/648 = 2268 - 16/648 = 2252/648
After reducing the fraction, the answer is 563/162
In mixed form: 377/162

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