Answers

Add 81/14 and 90/45

1^st number: 5 11/14, 2^nd number: 2 0/45

81/14 + 90/45 is 109/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 14 × 45 = 630,
   81/14 = 81 × 45/14 × 45 = 3645/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   90/45 = 90 × 14/45 × 14 = 1260/630
4. Add the two like fractions:
   3645/630 + 1260/630 = 3645 + 1260/630 = 4905/630
5. 4905/630 simplified gives 109/14
6. So, 81/14 + 90/45 = 109/14
   In mixed form: 711/14

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