Subtract 84/54 from 40/84
1st number: 40/84, 2nd number: 1 30/54
40/84 - 84/54 is -68/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
40/84 = 40 × 9/84 × 9 = 360/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
84/54 = 84 × 14/54 × 14 = 1176/756 - Subtract the two like fractions:
360/756 - 1176/756 = 360 - 1176/756 = -816/756 - After reducing the fraction, the answer is -68/63
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