Answers

Add 72/40 and 30/75

1^st number: 1 32/40, 2^nd number: 30/75

72/40 + 30/75 is 11/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 75 is 600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 600
2. For the 1st fraction, since 40 × 15 = 600,
   72/40 = 72 × 15/40 × 15 = 1080/600
3. Likewise, for the 2nd fraction, since 75 × 8 = 600,
   30/75 = 30 × 8/75 × 8 = 240/600
4. Add the two like fractions:
   1080/600 + 240/600 = 1080 + 240/600 = 1320/600
5. 1320/600 simplified gives 11/5
6. So, 72/40 + 30/75 = 11/5
   In mixed form: 21/5

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