Answers

Add 72/12 and 3/40

1^st number: 6 0/12, 2^nd number: 3/40

72/12 + 3/40 is 243/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 40 is 120
2. For the 1st fraction, since 12 × 10 = 120,
   72/12 = 72 × 10/12 × 10 = 720/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   3/40 = 3 × 3/40 × 3 = 9/120
4. Add the two fractions:
   720/120 + 9/120 = 720 + 9/120 = 729/120
5. 729/120 simplified gives 243/40
6. So, 72/12 + 3/40 = 243/40
   In mixed form: 63/40

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