Subtract 50/18 from 20/49, Solve 20/49

Subtract 50/18 from 20/49

1^st number: 20/49, 2^nd number: 2 14/18

20/49 - 50/18 is -1045/441.

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,
50/18 = 50 × 49/18 × 49 = 2450/882
Subtract the two like fractions:
360/882 - 2450/882 = 360 - 2450/882 = -2090/882
After reducing the fraction, the answer is -1045/441

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