Subtract 18/6 from 9/84
1st number: 9/84, 2nd number: 3 0/6
9/84 - 18/6 is -81/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 6 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 6 × 14 = 84,
18/6 = 18 × 14/6 × 14 = 252/84 - Subtract the two like fractions:
9/84 - 252/84 = 9 - 252/84 = -243/84 - After reducing the fraction, the answer is -81/28
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