Answers

Add 24/20 and 81/90

1^st number: 1 4/20, 2^nd number: 81/90

24/20 + 81/90 is 21/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   24/20 = 24 × 9/20 × 9 = 216/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   81/90 = 81 × 2/90 × 2 = 162/180
4. Add the two like fractions:
   216/180 + 162/180 = 216 + 162/180 = 378/180
5. 378/180 simplified gives 21/10
6. So, 24/20 + 81/90 = 21/10
   In mixed form: 21/10

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