Subtract 84/70 from 9/12
1st number: 9/12, 2nd number: 1 14/70
9/12 - 84/70 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
9/12 = 9 × 35/12 × 35 = 315/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
84/70 = 84 × 6/70 × 6 = 504/420 - Subtract the two like fractions:
315/420 - 504/420 = 315 - 504/420 = -189/420 - After reducing the fraction, the answer is -9/20
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