Subtract 42/9 from 12/35, Solve 12/35

Subtract 42/9 from 12/35

1^st number: 12/35, 2^nd number: 4 6/9

12/35 - 42/9 is -454/105.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 35 × 9 = 315,
12/35 = 12 × 9/35 × 9 = 108/315
Likewise, for the 2nd fraction, since 9 × 35 = 315,
42/9 = 42 × 35/9 × 35 = 1470/315
Subtract the two like fractions:
108/315 - 1470/315 = 108 - 1470/315 = -1362/315
After reducing the fraction, the answer is -454/105

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