Subtract 3/84 from 12/5, Solve 2 2/5

Subtract 3/84 from 12/5

1^st number: 2 2/5, 2^nd number: 3/84

12/5 - 3/84 is 331/140.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 5 × 84 = 420,
12/5 = 12 × 84/5 × 84 = 1008/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420
Subtract the two like fractions:
1008/420 - 15/420 = 1008 - 15/420 = 993/420
After reducing the fraction, the answer is 331/140
In mixed form: 251/140

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