Subtract 3/12 from 9/84
9/84 - 3/12 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
9/84 = 9 × 1/84 × 1 = 9/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
3/12 = 3 × 7/12 × 7 = 21/84 - Subtract the two like fractions:
9/84 - 21/84 = 9 - 21/84 = -12/84 - After reducing the fraction, the answer is -1/7
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