Answers

Add 24/42 and 28/84

24/42 + 28/84 is 19/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 42 × 2 = 84,
   24/42 = 24 × 2/42 × 2 = 48/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   28/84 = 28 × 1/84 × 1 = 28/84
4. Add the two like fractions:
   48/84 + 28/84 = 48 + 28/84 = 76/84
5. 76/84 simplified gives 19/21
6. So, 24/42 + 28/84 = 19/21

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