Subtract 1/36 from 30/81
30/81 - 1/36 is 37/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 36 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
30/81 = 30 × 4/81 × 4 = 120/324 - Likewise, for the 2nd fraction, since 36 × 9 = 324,
1/36 = 1 × 9/36 × 9 = 9/324 - Subtract the two like fractions:
120/324 - 9/324 = 120 - 9/324 = 111/324 - After reducing the fraction, the answer is 37/108
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