Subtract 12/9 from 81/25, Solve 3 6/25

Subtract 12/9 from 81/25

1^st number: 3 6/25, 2^nd number: 1 3/9

81/25 - 12/9 is 143/75.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225

Next, find the equivalent fraction of both fractional numbers with denominator 225
For the 1st fraction, since 25 × 9 = 225,
81/25 = 81 × 9/25 × 9 = 729/225
Likewise, for the 2nd fraction, since 9 × 25 = 225,
12/9 = 12 × 25/9 × 25 = 300/225
Subtract the two like fractions:
729/225 - 300/225 = 729 - 300/225 = 429/225
After reducing the fraction, the answer is 143/75
In mixed form: 168/75

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