Subtract 3/81 from 16/4, Solve 4 0/4

Subtract 3/81 from 16/4

1^st number: 4 0/4, 2^nd number: 3/81

16/4 - 3/81 is 107/27.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324

Next, find the equivalent fraction of both fractional numbers with denominator 324
For the 1st fraction, since 4 × 81 = 324,
16/4 = 16 × 81/4 × 81 = 1296/324
Likewise, for the 2nd fraction, since 81 × 4 = 324,
3/81 = 3 × 4/81 × 4 = 12/324
Subtract the two like fractions:
1296/324 - 12/324 = 1296 - 12/324 = 1284/324
After reducing the fraction, the answer is 107/27
In mixed form: 326/27

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