Subtract 18/8 from 20/49
1st number: 20/49, 2nd number: 2 2/8
20/49 - 18/8 is -361/196.
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,
20/49 = 20 × 8/49 × 8 = 160/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
18/8 = 18 × 49/8 × 49 = 882/392 - Subtract the two like fractions:
160/392 - 882/392 = 160 - 882/392 = -722/392 - After reducing the fraction, the answer is -361/196
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