Subtract 24/80 from 7/84
7/84 - 24/80 is -13/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
7/84 = 7 × 20/84 × 20 = 140/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
24/80 = 24 × 21/80 × 21 = 504/1680 - Subtract the two like fractions:
140/1680 - 504/1680 = 140 - 504/1680 = -364/1680 - After reducing the fraction, the answer is -13/60
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