Answers

Add 72/20 and 40/32

1^st number: 3 12/20, 2^nd number: 1 8/32

72/20 + 40/32 is 97/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 32 is 160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 160
2. For the 1st fraction, since 20 × 8 = 160,
   72/20 = 72 × 8/20 × 8 = 576/160
3. Likewise, for the 2nd fraction, since 32 × 5 = 160,
   40/32 = 40 × 5/32 × 5 = 200/160
4. Add the two like fractions:
   576/160 + 200/160 = 576 + 200/160 = 776/160
5. 776/160 simplified gives 97/20
6. So, 72/20 + 40/32 = 97/20
   In mixed form: 417/20

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