Answers

Add 24/21 and 30/90

1^st number: 1 3/21, 2^nd number: 30/90

24/21 + 30/90 is 31/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 21 × 30 = 630,
   24/21 = 24 × 30/21 × 30 = 720/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   30/90 = 30 × 7/90 × 7 = 210/630
4. Add the two like fractions:
   720/630 + 210/630 = 720 + 210/630 = 930/630
5. 930/630 simplified gives 31/21
6. So, 24/21 + 30/90 = 31/21
   In mixed form: 110/21

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