Answers

Add 63/7 and 50/90

1^st number: 9 0/7, 2^nd number: 50/90

63/7 + 50/90 is 86/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 7 × 90 = 630,
   63/7 = 63 × 90/7 × 90 = 5670/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   50/90 = 50 × 7/90 × 7 = 350/630
4. Add the two like fractions:
   5670/630 + 350/630 = 5670 + 350/630 = 6020/630
5. 6020/630 simplified gives 86/9
6. So, 63/7 + 50/90 = 86/9
   In mixed form: 95/9

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