Answers

Add 12/21 and 45/24

1^st number: 12/21, 2^nd number: 1 21/24

12/21 + 45/24 is 137/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 24 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 21 × 8 = 168,
   12/21 = 12 × 8/21 × 8 = 96/168
3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
   45/24 = 45 × 7/24 × 7 = 315/168
4. Add the two like fractions:
   96/168 + 315/168 = 96 + 315/168 = 411/168
5. 411/168 simplified gives 137/56
6. So, 12/21 + 45/24 = 137/56
   In mixed form: 225/56

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