Answers

Add 81/10 and 70/63

1^st number: 8 1/10, 2^nd number: 1 7/63

81/10 + 70/63 is 829/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 10 × 63 = 630,
   81/10 = 81 × 63/10 × 63 = 5103/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   70/63 = 70 × 10/63 × 10 = 700/630
4. Add the two like fractions:
   5103/630 + 700/630 = 5103 + 700/630 = 5803/630
5. 5803/630 simplified gives 829/90
6. So, 81/10 + 70/63 = 829/90
   In mixed form: 919/90

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