Subtract 10/20 from 30/49, Solve 30/49

Subtract 10/20 from 30/49

30/49 - 10/20 is 11/98.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980

Next, find the equivalent fraction of both fractional numbers with denominator 980
For the 1st fraction, since 49 × 20 = 980,
30/49 = 30 × 20/49 × 20 = 600/980
Likewise, for the 2nd fraction, since 20 × 49 = 980,
10/20 = 10 × 49/20 × 49 = 490/980
Subtract the two like fractions:
600/980 - 490/980 = 600 - 490/980 = 110/980
After reducing the fraction, the answer is 11/98

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