Subtract 30/81 from 64/45
1st number: 1 19/45, 2nd number: 30/81
64/45 - 30/81 is 142/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
64/45 = 64 × 9/45 × 9 = 576/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
30/81 = 30 × 5/81 × 5 = 150/405 - Subtract the two like fractions:
576/405 - 150/405 = 576 - 150/405 = 426/405 - After reducing the fraction, the answer is 142/135
- In mixed form: 17/135
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