Subtract 9/84 from 5/75
5/75 - 9/84 is -17/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
5/75 = 5 × 28/75 × 28 = 140/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
9/84 = 9 × 25/84 × 25 = 225/2100 - Subtract the two like fractions:
140/2100 - 225/2100 = 140 - 225/2100 = -85/2100 - After reducing the fraction, the answer is -17/420
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