Subtract 1/81 from 84/30
1st number: 2 24/30, 2nd number: 1/81
84/30 - 1/81 is 1129/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
84/30 = 84 × 27/30 × 27 = 2268/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
1/81 = 1 × 10/81 × 10 = 10/810 - Subtract the two like fractions:
2268/810 - 10/810 = 2268 - 10/810 = 2258/810 - After reducing the fraction, the answer is 1129/405
- In mixed form: 2319/405
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