Subtract 20/8 from 18/49
1st number: 18/49, 2nd number: 2 4/8
18/49 - 20/8 is -209/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
18/49 = 18 × 8/49 × 8 = 144/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
20/8 = 20 × 49/8 × 49 = 980/392 - Subtract the two like fractions:
144/392 - 980/392 = 144 - 980/392 = -836/392 - After reducing the fraction, the answer is -209/98
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