Subtract 21/98 from 6/80
6/80 - 21/98 is -39/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 98 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 80 × 49 = 3920,
6/80 = 6 × 49/80 × 49 = 294/3920 - Likewise, for the 2nd fraction, since 98 × 40 = 3920,
21/98 = 21 × 40/98 × 40 = 840/3920 - Subtract the two like fractions:
294/3920 - 840/3920 = 294 - 840/3920 = -546/3920 - After reducing the fraction, the answer is -39/280
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