Subtract 14/21 from 20/75
20/75 - 14/21 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
20/75 = 20 × 7/75 × 7 = 140/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
14/21 = 14 × 25/21 × 25 = 350/525 - Subtract the two like fractions:
140/525 - 350/525 = 140 - 350/525 = -210/525 - After reducing the fraction, the answer is -2/5
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