Subtract 21/98 from 49/90
49/90 - 21/98 is 104/315.
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,
49/90 = 49 × 49/90 × 49 = 2401/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
21/98 = 21 × 45/98 × 45 = 945/4410 - Subtract the two like fractions:
2401/4410 - 945/4410 = 2401 - 945/4410 = 1456/4410 - After reducing the fraction, the answer is 104/315
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