Subtract 4/21 from 4/25
425 - 421 is -16525.
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,
425 = 4 × 2125 × 21 = 84525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
421 = 4 × 2521 × 25 = 100525 - Subtract the two like fractions:
84525 - 100525 = 84 - 100525 = -16525
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