Answers

Add 84/42 and 98/20

1^st number: 2 0/42, 2^nd number: 4 18/20

84/42 + 98/20 is 69/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   84/42 = 84 × 10/42 × 10 = 840/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   98/20 = 98 × 21/20 × 21 = 2058/420
4. Add the two like fractions:
   840/420 + 2058/420 = 840 + 2058/420 = 2898/420
5. 2898/420 simplified gives 69/10
6. So, 84/42 + 98/20 = 69/10
   In mixed form: 69/10

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