Subtract 64/84 from 15/25
15/25 - 64/84 is -17/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 25 × 84 = 2100,
15/25 = 15 × 84/25 × 84 = 1260/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
64/84 = 64 × 25/84 × 25 = 1600/2100 - Subtract the two like fractions:
1260/2100 - 1600/2100 = 1260 - 1600/2100 = -340/2100 - After reducing the fraction, the answer is -17/105
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