Answers

Add 90/21 and 80/24

1^st number: 4 6/21, 2^nd number: 3 8/24

90/21 + 80/24 is 160/21.

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,
   90/21 = 90 × 8/21 × 8 = 720/168
3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
   80/24 = 80 × 7/24 × 7 = 560/168
4. Add the two like fractions:
   720/168 + 560/168 = 720 + 560/168 = 1280/168
5. 1280/168 simplified gives 160/21
6. So, 90/21 + 80/24 = 160/21
   In mixed form: 713/21

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