Answers

Add 81/70 and 2/63

1^st number: 1 11/70, 2^nd number: 2/63

81/70 + 2/63 is 107/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   81/70 = 81 × 9/70 × 9 = 729/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   2/63 = 2 × 10/63 × 10 = 20/630
4. Add the two like fractions:
   729/630 + 20/630 = 729 + 20/630 = 749/630
5. 749/630 simplified gives 107/90
6. So, 81/70 + 2/63 = 107/90
   In mixed form: 117/90

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