Answers

Add 35/28 and 75/90

1^st number: 1 7/28, 2^nd number: 75/90

35/28 + 75/90 is 25/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   35/28 = 35 × 45/28 × 45 = 1575/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   75/90 = 75 × 14/90 × 14 = 1050/1260
4. Add the two like fractions:
   1575/1260 + 1050/1260 = 1575 + 1050/1260 = 2625/1260
5. 2625/1260 simplified gives 25/12
6. So, 35/28 + 75/90 = 25/12
   In mixed form: 21/12

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