Answers

Add 9/49 and 90/81

1^st number: 9/49, 2^nd number: 1 9/81

9/49 + 90/81 is 571/441.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 81 is 3969
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3969
2. For the 1st fraction, since 49 × 81 = 3969,
   9/49 = 9 × 81/49 × 81 = 729/3969
3. Likewise, for the 2nd fraction, since 81 × 49 = 3969,
   90/81 = 90 × 49/81 × 49 = 4410/3969
4. Add the two like fractions:
   729/3969 + 4410/3969 = 729 + 4410/3969 = 5139/3969
5. 5139/3969 simplified gives 571/441
6. So, 9/49 + 90/81 = 571/441
   In mixed form: 1130/441

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