Subtract 9/20 from 70/98, Solve 70/98

Subtract 9/20 from 70/98

70/98 - 9/20 is 37/140.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 20 is 980

Next, find the equivalent fraction of both fractional numbers with denominator 980
For the 1st fraction, since 98 × 10 = 980,
70/98 = 70 × 10/98 × 10 = 700/980
Likewise, for the 2nd fraction, since 20 × 49 = 980,
9/20 = 9 × 49/20 × 49 = 441/980
Subtract the two like fractions:
700/980 - 441/980 = 700 - 441/980 = 259/980
After reducing the fraction, the answer is 37/140

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