Answers

Add 81/9 and 42/35

1^st number: 9 0/9, 2^nd number: 1 7/35

81/9 + 42/35 is 51/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 35 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 9 × 35 = 315,
   81/9 = 81 × 35/9 × 35 = 2835/315
3. Likewise, for the 2nd fraction, since 35 × 9 = 315,
   42/35 = 42 × 9/35 × 9 = 378/315
4. Add the two like fractions:
   2835/315 + 378/315 = 2835 + 378/315 = 3213/315
5. 3213/315 simplified gives 51/5
6. So, 81/9 + 42/35 = 51/5
   In mixed form: 101/5

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