Answers

Add 16/21 and 84/60

1^st number: 16/21, 2^nd number: 1 24/60

16/21 + 84/60 is 227/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 21 × 20 = 420,
   16/21 = 16 × 20/21 × 20 = 320/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   84/60 = 84 × 7/60 × 7 = 588/420
4. Add the two like fractions:
   320/420 + 588/420 = 320 + 588/420 = 908/420
5. 908/420 simplified gives 227/105
6. So, 16/21 + 84/60 = 227/105
   In mixed form: 217/105

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