Answers

Add 21/35 and 90/36

1^st number: 21/35, 2^nd number: 2 18/36

21/35 + 90/36 is 31/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 36 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 35 × 36 = 1260,
   21/35 = 21 × 36/35 × 36 = 756/1260
3. Likewise, for the 2nd fraction, since 36 × 35 = 1260,
   90/36 = 90 × 35/36 × 35 = 3150/1260
4. Add the two like fractions:
   756/1260 + 3150/1260 = 756 + 3150/1260 = 3906/1260
5. 3906/1260 simplified gives 31/10
6. So, 21/35 + 90/36 = 31/10
   In mixed form: 31/10

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