Subtract 3/81 from 4/49, Solve 4/49

Subtract 3/81 from 4/49

4/49 - 3/81 is 59/1323.

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,
4/49 = 4 × 81/49 × 81 = 324/3969
Likewise, for the 2nd fraction, since 81 × 49 = 3969,
3/81 = 3 × 49/81 × 49 = 147/3969
Subtract the two like fractions:
324/3969 - 147/3969 = 324 - 147/3969 = 177/3969
After reducing the fraction, the answer is 59/1323

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