Add 84/40 and 8/81
1st number: 2 4/40, 2nd number: 8/81
84/40 + 8/81 is 1781/810.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
84/40 = 84 × 81/40 × 81 = 6804/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
8/81 = 8 × 40/81 × 40 = 320/3240 - Add the two like fractions:
6804/3240 + 320/3240 = 6804 + 320/3240 = 7124/3240 - 7124/3240 simplified gives 1781/810
- So, 84/40 + 8/81 = 1781/810
In mixed form: 2161/810
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