Subtract 8/18 from 20/49
20/49 - 8/18 is -16/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 49 × 18 = 882,
20/49 = 20 × 18/49 × 18 = 360/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
8/18 = 8 × 49/18 × 49 = 392/882 - Subtract the two like fractions:
360/882 - 392/882 = 360 - 392/882 = -32/882 - After reducing the fraction, the answer is -16/441
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