Answers

Add 9/21 and 90/35

1^st number: 9/21, 2^nd number: 2 20/35

9/21 + 90/35 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 35 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   9/21 = 9 × 5/21 × 5 = 45/105
3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
   90/35 = 90 × 3/35 × 3 = 270/105
4. Add the two like fractions:
   45/105 + 270/105 = 45 + 270/105 = 315/105
5. 315/105 simplified gives 3/1
6. So, 9/21 + 90/35 = 3/1

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