Subtract 8/21 from 3/25
3/25 - 8/21 is -137/525.
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,
3/25 = 3 × 21/25 × 21 = 63/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
8/21 = 8 × 25/21 × 25 = 200/525 - Subtract the two like fractions:
63/525 - 200/525 = 63 - 200/525 = -137/525
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