Subtract 4/98 from 20/90
20/90 - 4/98 is 80/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
20/90 = 20 × 49/90 × 49 = 980/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
4/98 = 4 × 45/98 × 45 = 180/4410 - Subtract the two like fractions:
980/4410 - 180/4410 = 980 - 180/4410 = 800/4410 - After reducing the fraction, the answer is 80/441
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