Answers

Add 81/63 and 10/90

1^st number: 1 18/63, 2^nd number: 10/90

81/63 + 10/90 is 88/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   81/63 = 81 × 10/63 × 10 = 810/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   10/90 = 10 × 7/90 × 7 = 70/630
4. Add the two like fractions:
   810/630 + 70/630 = 810 + 70/630 = 880/630
5. 880/630 simplified gives 88/63
6. So, 81/63 + 10/90 = 88/63
   In mixed form: 125/63

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