Answers

Add 72/40 and 60/15

1^st number: 1 32/40, 2^nd number: 4 0/15

72/40 + 60/15 is 29/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 15 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   72/40 = 72 × 3/40 × 3 = 216/120
3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
   60/15 = 60 × 8/15 × 8 = 480/120
4. Add the two like fractions:
   216/120 + 480/120 = 216 + 480/120 = 696/120
5. 696/120 simplified gives 29/5
6. So, 72/40 + 60/15 = 29/5
   In mixed form: 54/5

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