Answers

Add 40/12 and 7/72

1^st number: 3 4/12, 2^nd number: 7/72

40/12 + 7/72 is 247/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 12 × 6 = 72,
   40/12 = 40 × 6/12 × 6 = 240/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   7/72 = 7 × 1/72 × 1 = 7/72
4. Add the two like fractions:
   240/72 + 7/72 = 240 + 7/72 = 247/72
5. So, 40/12 + 7/72 = 247/72
   In mixed form: 331/72

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