Subtract 10/81 from 3/36
3/36 - 10/81 is -13/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
3/36 = 3 × 9/36 × 9 = 27/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
10/81 = 10 × 4/81 × 4 = 40/324 - Subtract the two like fractions:
27/324 - 40/324 = 27 - 40/324 = -13/324
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