Answers

Add 24/21 and 84/80

1^st number: 1 3/21, 2^nd number: 1 4/80

24/21 + 84/80 is 307/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 21 × 80 = 1680,
   24/21 = 24 × 80/21 × 80 = 1920/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   84/80 = 84 × 21/80 × 21 = 1764/1680
4. Add the two like fractions:
   1920/1680 + 1764/1680 = 1920 + 1764/1680 = 3684/1680
5. 3684/1680 simplified gives 307/140
6. So, 24/21 + 84/80 = 307/140
   In mixed form: 227/140

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