Subtract 3/81 from 25/4, Solve 6 1/4

Subtract 3/81 from 25/4

1^st number: 6 1/4, 2^nd number: 3/81

25/4 - 3/81 is 671/108.

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,
25/4 = 25 × 81/4 × 81 = 2025/324
Likewise, for the 2nd fraction, since 81 × 4 = 324,
3/81 = 3 × 4/81 × 4 = 12/324
Subtract the two like fractions:
2025/324 - 12/324 = 2025 - 12/324 = 2013/324
After reducing the fraction, the answer is 671/108
In mixed form: 623/108

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