Subtract 9/5 from 3/81
1st number: 3/81, 2nd number: 1 4/5
3/81 - 9/5 is -238/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
3/81 = 3 × 5/81 × 5 = 15/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
9/5 = 9 × 81/5 × 81 = 729/405 - Subtract the two like fractions:
15/405 - 729/405 = 15 - 729/405 = -714/405 - After reducing the fraction, the answer is -238/135
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