Answers

Add 42/21 and 50/42

1^st number: 2 0/21, 2^nd number: 1 8/42

42/21 + 50/42 is 67/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 42 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   42/21 = 42 × 2/21 × 2 = 84/42
3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
   50/42 = 50 × 1/42 × 1 = 50/42
4. Add the two like fractions:
   84/42 + 50/42 = 84 + 50/42 = 134/42
5. 134/42 simplified gives 67/21
6. So, 42/21 + 50/42 = 67/21
   In mixed form: 34/21

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