Answers

Add 81/28 and 35/75

1^st number: 2 25/28, 2^nd number: 35/75

81/28 + 35/75 is 1411/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 75 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 28 × 75 = 2100,
   81/28 = 81 × 75/28 × 75 = 6075/2100
3. Likewise, for the 2nd fraction, since 75 × 28 = 2100,
   35/75 = 35 × 28/75 × 28 = 980/2100
4. Add the two like fractions:
   6075/2100 + 980/2100 = 6075 + 980/2100 = 7055/2100
5. 7055/2100 simplified gives 1411/420
6. So, 81/28 + 35/75 = 1411/420
   In mixed form: 3151/420

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