Answers

Subtract 5/81 from 30/49

30/49 - 5/81 is 2185/3969.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 49 × 81 = 3969,
   30/49 = 30 × 81/49 × 81 = 2430/3969
3. Likewise, for the 2nd fraction, since 81 × 49 = 3969,
   5/81 = 5 × 49/81 × 49 = 245/3969
4. Subtract the two like fractions:
   2430/3969 - 245/3969 = 2430 - 245/3969 = 2185/3969

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