Subtract 21/25 from 2/84
2/84 - 21/25 is -857/1050.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 25 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
2/84 = 2 × 25/84 × 25 = 50/2100 - Likewise, for the 2nd fraction, since 25 × 84 = 2100,
21/25 = 21 × 84/25 × 84 = 1764/2100 - Subtract the two like fractions:
50/2100 - 1764/2100 = 50 - 1764/2100 = -1714/2100 - After reducing the fraction, the answer is -857/1050
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