Answers

Add 24/21 and 42/84

1^st number: 1 3/21, 2^nd number: 42/84

24/21 + 42/84 is 23/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   24/21 = 24 × 4/21 × 4 = 96/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   42/84 = 42 × 1/84 × 1 = 42/84
4. Add the two like fractions:
   96/84 + 42/84 = 96 + 42/84 = 138/84
5. 138/84 simplified gives 23/14
6. So, 24/21 + 42/84 = 23/14
   In mixed form: 19/14

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