Answers

Add 81/35 and 14/90

1^st number: 2 11/35, 2^nd number: 14/90

81/35 + 14/90 is 778/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 35 × 18 = 630,
   81/35 = 81 × 18/35 × 18 = 1458/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   14/90 = 14 × 7/90 × 7 = 98/630
4. Add the two like fractions:
   1458/630 + 98/630 = 1458 + 98/630 = 1556/630
5. 1556/630 simplified gives 778/315
6. So, 81/35 + 14/90 = 778/315
   In mixed form: 2148/315

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