Subtract 90/12 from 36/35, Solve 1 1/35

Subtract 90/12 from 36/35

1^st number: 1 1/35, 2^nd number: 7 6/12

36/35 - 90/12 is -453/70.

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

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 35 × 12 = 420,
36/35 = 36 × 12/35 × 12 = 432/420
Likewise, for the 2nd fraction, since 12 × 35 = 420,
90/12 = 90 × 35/12 × 35 = 3150/420
Subtract the two like fractions:
432/420 - 3150/420 = 432 - 3150/420 = -2718/420
After reducing the fraction, the answer is -453/70

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