Subtract 20/10 from 81/49
1st number: 1 32/49, 2nd number: 2 0/10
81/49 - 20/10 is -17/49.
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,
81/49 = 81 × 10/49 × 10 = 810/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
20/10 = 20 × 49/10 × 49 = 980/490 - Subtract the two like fractions:
810/490 - 980/490 = 810 - 980/490 = -170/490 - After reducing the fraction, the answer is -17/49
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