Subtract 21/75 from 8/84
8/84 - 21/75 is -97/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
8/84 = 8 × 25/84 × 25 = 200/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
21/75 = 21 × 28/75 × 28 = 588/2100 - Subtract the two like fractions:
200/2100 - 588/2100 = 200 - 588/2100 = -388/2100 - After reducing the fraction, the answer is -97/525
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