Answers

Add 42/18 and 63/49

1^st number: 2 6/18, 2^nd number: 1 14/49

42/18 + 63/49 is 76/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 49 is 882
   
   Next, find the equivalent fraction of both fractional numbers with denominator 882
2. For the 1st fraction, since 18 × 49 = 882,
   42/18 = 42 × 49/18 × 49 = 2058/882
3. Likewise, for the 2nd fraction, since 49 × 18 = 882,
   63/49 = 63 × 18/49 × 18 = 1134/882
4. Add the two like fractions:
   2058/882 + 1134/882 = 2058 + 1134/882 = 3192/882
5. 3192/882 simplified gives 76/21
6. So, 42/18 + 63/49 = 76/21
   In mixed form: 313/21

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