Subtract 40/98 from 20/63
20/63 - 40/98 is -40/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 98 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 63 × 14 = 882,
20/63 = 20 × 14/63 × 14 = 280/882 - Likewise, for the 2nd fraction, since 98 × 9 = 882,
40/98 = 40 × 9/98 × 9 = 360/882 - Subtract the two like fractions:
280/882 - 360/882 = 280 - 360/882 = -80/882 - After reducing the fraction, the answer is -40/441
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