Answers

Add 9/30 and 90/81

1^st number: 9/30, 2^nd number: 1 9/81

9/30 + 90/81 is 127/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 30 × 27 = 810,
   9/30 = 9 × 27/30 × 27 = 243/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   90/81 = 90 × 10/81 × 10 = 900/810
4. Add the two like fractions:
   243/810 + 900/810 = 243 + 900/810 = 1143/810
5. 1143/810 simplified gives 127/90
6. So, 9/30 + 90/81 = 127/90
   In mixed form: 137/90

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