Answers

Add 84/32 and 36/21

1^st number: 2 20/32, 2^nd number: 1 15/21

84/32 + 36/21 is 243/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 32 and 21 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 32 × 21 = 672,
   84/32 = 84 × 21/32 × 21 = 1764/672
3. Likewise, for the 2nd fraction, since 21 × 32 = 672,
   36/21 = 36 × 32/21 × 32 = 1152/672
4. Add the two like fractions:
   1764/672 + 1152/672 = 1764 + 1152/672 = 2916/672
5. 2916/672 simplified gives 243/56
6. So, 84/32 + 36/21 = 243/56
   In mixed form: 419/56

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