Subtract 28/10 from 20/49
1st number: 20/49, 2nd number: 2 8/10
20/49 - 28/10 is -586/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
20/49 = 20 × 10/49 × 10 = 200/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
28/10 = 28 × 49/10 × 49 = 1372/490 - Subtract the two like fractions:
200/490 - 1372/490 = 200 - 1372/490 = -1172/490 - After reducing the fraction, the answer is -586/245
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