Subtract 7/21 from 1/25
1/25 - 7/21 is -22/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
1/25 = 1 × 21/25 × 21 = 21/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
7/21 = 7 × 25/21 × 25 = 175/525 - Subtract the two like fractions:
21/525 - 175/525 = 21 - 175/525 = -154/525 - After reducing the fraction, the answer is -22/75
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