Subtract 5/4 from 18/81
1st number: 18/81, 2nd number: 1 1/4
18/81 - 5/4 is -37/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
18/81 = 18 × 4/81 × 4 = 72/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
5/4 = 5 × 81/4 × 81 = 405/324 - Subtract the two like fractions:
72/324 - 405/324 = 72 - 405/324 = -333/324 - After reducing the fraction, the answer is -37/36
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