Answers

Add 72/84 and 28/32

72/84 + 28/32 is 97/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 32 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 84 × 8 = 672,
   72/84 = 72 × 8/84 × 8 = 576/672
3. Likewise, for the 2nd fraction, since 32 × 21 = 672,
   28/32 = 28 × 21/32 × 21 = 588/672
4. Add the two like fractions:
   576/672 + 588/672 = 576 + 588/672 = 1164/672
5. 1164/672 simplified gives 97/56
6. So, 72/84 + 28/32 = 97/56
   In mixed form: 141/56

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