Subtract 4/81 from 30/10
1st number: 3 0/10, 2nd number: 4/81
30/10 - 4/81 is 239/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
30/10 = 30 × 81/10 × 81 = 2430/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
4/81 = 4 × 10/81 × 10 = 40/810 - Subtract the two like fractions:
2430/810 - 40/810 = 2430 - 40/810 = 2390/810 - After reducing the fraction, the answer is 239/81
- In mixed form: 277/81
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