Answers

Add 63/42 and 49/90

1^st number: 1 21/42, 2^nd number: 49/90

63/42 + 49/90 is 92/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   63/42 = 63 × 15/42 × 15 = 945/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   49/90 = 49 × 7/90 × 7 = 343/630
4. Add the two like fractions:
   945/630 + 343/630 = 945 + 343/630 = 1288/630
5. 1288/630 simplified gives 92/45
6. So, 63/42 + 49/90 = 92/45
   In mixed form: 22/45

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