Subtract 50/35 from 42/12, Solve 3 6/12

Subtract 50/35 from 42/12

1^st number: 3 6/12, 2^nd number: 1 15/35

42/12 - 50/35 is 29/14.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
42/12 = 42 × 35/12 × 35 = 1470/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
50/35 = 50 × 12/35 × 12 = 600/420
Subtract the two like fractions:
1470/420 - 600/420 = 1470 - 600/420 = 870/420
After reducing the fraction, the answer is 29/14
In mixed form: 21/14

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