Answers

Add 84/40 and 40/81

1^st number: 2 4/40, 2^nd number: 40/81

84/40 + 40/81 is 2101/810.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 40 × 81 = 3240,
   84/40 = 84 × 81/40 × 81 = 6804/3240
3. Likewise, for the 2nd fraction, since 81 × 40 = 3240,
   40/81 = 40 × 40/81 × 40 = 1600/3240
4. Add the two like fractions:
   6804/3240 + 1600/3240 = 6804 + 1600/3240 = 8404/3240
5. 8404/3240 simplified gives 2101/810
6. So, 84/40 + 40/81 = 2101/810
   In mixed form: 2481/810

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