Subtract 15/25 from 2/21
2/21 - 15/25 is -53/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
2/21 = 2 × 25/21 × 25 = 50/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
15/25 = 15 × 21/25 × 21 = 315/525 - Subtract the two like fractions:
50/525 - 315/525 = 50 - 315/525 = -265/525 - After reducing the fraction, the answer is -53/105
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