Subtract 9/81 from 3/49, Solve 3/49

Subtract 9/81 from 3/49

3/49 - 9/81 is -22/441.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 81 is 3969

Next, find the equivalent fraction of both fractional numbers with denominator 3969
For the 1st fraction, since 49 × 81 = 3969,
3/49 = 3 × 81/49 × 81 = 243/3969
Likewise, for the 2nd fraction, since 81 × 49 = 3969,
9/81 = 9 × 49/81 × 49 = 441/3969
Subtract the two like fractions:
243/3969 - 441/3969 = 243 - 441/3969 = -198/3969
After reducing the fraction, the answer is -22/441

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