Answers

Add 21/60 and 84/9

1^st number: 21/60, 2^nd number: 9 3/9

21/60 + 84/9 is 581/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 9 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 60 × 3 = 180,
   21/60 = 21 × 3/60 × 3 = 63/180
3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
   84/9 = 84 × 20/9 × 20 = 1680/180
4. Add the two like fractions:
   63/180 + 1680/180 = 63 + 1680/180 = 1743/180
5. 1743/180 simplified gives 581/60
6. So, 21/60 + 84/9 = 581/60
   In mixed form: 941/60

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