Answers

Add 28/35 and 81/24

1^st number: 28/35, 2^nd number: 3 9/24

28/35 + 81/24 is 167/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 24 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 35 × 24 = 840,
   28/35 = 28 × 24/35 × 24 = 672/840
3. Likewise, for the 2nd fraction, since 24 × 35 = 840,
   81/24 = 81 × 35/24 × 35 = 2835/840
4. Add the two like fractions:
   672/840 + 2835/840 = 672 + 2835/840 = 3507/840
5. 3507/840 simplified gives 167/40
6. So, 28/35 + 81/24 = 167/40
   In mixed form: 47/40

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