Subtract 90/12 from 20/35
1st number: 20/35, 2nd number: 7 6/12
20/35 - 90/12 is -97/14.
Steps for subtracting fractions
- 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,
20/35 = 20 × 12/35 × 12 = 240/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
90/12 = 90 × 35/12 × 35 = 3150/420 - Subtract the two like fractions:
240/420 - 3150/420 = 240 - 3150/420 = -2910/420 - After reducing the fraction, the answer is -97/14
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