Subtract 63/81 from 84/30
1st number: 2 24/30, 2nd number: 63/81
84/30 - 63/81 is 91/45.
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,
63/81 = 63 × 10/81 × 10 = 630/810 - Subtract the two like fractions:
2268/810 - 630/810 = 2268 - 630/810 = 1638/810 - After reducing the fraction, the answer is 91/45
- In mixed form: 21/45
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