Answers

Add 45/10 and 90/81

1^st number: 4 5/10, 2^nd number: 1 9/81

45/10 + 90/81 is 101/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 10 × 81 = 810,
   45/10 = 45 × 81/10 × 81 = 3645/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   90/81 = 90 × 10/81 × 10 = 900/810
4. Add the two like fractions:
   3645/810 + 900/810 = 3645 + 900/810 = 4545/810
5. 4545/810 simplified gives 101/18
6. So, 45/10 + 90/81 = 101/18
   In mixed form: 511/18

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