Answers

Add 30/81 and 84/80

1^st number: 30/81, 2^nd number: 1 4/80

30/81 + 84/80 is 767/540.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 80 is 6480
   
   Next, find the equivalent fraction of both fractional numbers with denominator 6480
2. For the 1st fraction, since 81 × 80 = 6480,
   30/81 = 30 × 80/81 × 80 = 2400/6480
3. Likewise, for the 2nd fraction, since 80 × 81 = 6480,
   84/80 = 84 × 81/80 × 81 = 6804/6480
4. Add the two like fractions:
   2400/6480 + 6804/6480 = 2400 + 6804/6480 = 9204/6480
5. 9204/6480 simplified gives 767/540
6. So, 30/81 + 84/80 = 767/540
   In mixed form: 1227/540

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