Answers

Add 14/21 and 84/60

1^st number: 14/21, 2^nd number: 1 24/60

14/21 + 84/60 is 31/15.

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,
   14/21 = 14 × 20/21 × 20 = 280/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   84/60 = 84 × 7/60 × 7 = 588/420
4. Add the two like fractions:
   280/420 + 588/420 = 280 + 588/420 = 868/420
5. 868/420 simplified gives 31/15
6. So, 14/21 + 84/60 = 31/15
   In mixed form: 21/15

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