Answers

Add 81/21 and 60/84

1^st number: 3 18/21, 2^nd number: 60/84

81/21 + 60/84 is 32/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   81/21 = 81 × 4/21 × 4 = 324/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   60/84 = 60 × 1/84 × 1 = 60/84
4. Add the two like fractions:
   324/84 + 60/84 = 324 + 60/84 = 384/84
5. 384/84 simplified gives 32/7
6. So, 81/21 + 60/84 = 32/7
   In mixed form: 44/7

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