Answers

Add 90/49 and 20/81

1^st number: 1 41/49, 2^nd number: 20/81

90/49 + 20/81 is 8270/3969.

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,
   90/49 = 90 × 81/49 × 81 = 7290/3969
3. Likewise, for the 2nd fraction, since 81 × 49 = 3969,
   20/81 = 20 × 49/81 × 49 = 980/3969
4. Add the two like fractions:
   7290/3969 + 980/3969 = 7290 + 980/3969 = 8270/3969
5. So, 90/49 + 20/81 = 8270/3969
   In mixed form: 2332/3969

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