Subtract 5/81 from 30/16, Solve 1 14/16

Subtract 5/81 from 30/16

1^st number: 1 14/16, 2^nd number: 5/81

30/16 - 5/81 is 1175/648.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296

Next, find the equivalent fraction of both fractional numbers with denominator 1296
For the 1st fraction, since 16 × 81 = 1296,
30/16 = 30 × 81/16 × 81 = 2430/1296
Likewise, for the 2nd fraction, since 81 × 16 = 1296,
5/81 = 5 × 16/81 × 16 = 80/1296
Subtract the two like fractions:
2430/1296 - 80/1296 = 2430 - 80/1296 = 2350/1296
After reducing the fraction, the answer is 1175/648
In mixed form: 1527/648

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