Subtract 10/42 from 84/27, Solve 3 3/27

Subtract 10/42 from 84/27

1^st number: 3 3/27, 2^nd number: 10/42

84/27 - 10/42 is 181/63.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
84/27 = 84 × 14/27 × 14 = 1176/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
10/42 = 10 × 9/42 × 9 = 90/378
Subtract the two like fractions:
1176/378 - 90/378 = 1176 - 90/378 = 1086/378
After reducing the fraction, the answer is 181/63
In mixed form: 255/63

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