Subtract 7/81 from 50/16, Solve 3 2/16

Subtract 7/81 from 50/16

1^st number: 3 2/16, 2^nd number: 7/81

50/16 - 7/81 is 1969/648.

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,
50/16 = 50 × 81/16 × 81 = 4050/1296
Likewise, for the 2nd fraction, since 81 × 16 = 1296,
7/81 = 7 × 16/81 × 16 = 112/1296
Subtract the two like fractions:
4050/1296 - 112/1296 = 4050 - 112/1296 = 3938/1296
After reducing the fraction, the answer is 1969/648
In mixed form: 325/648

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