Answers

Add 72/15 and 80/56

1^st number: 4 12/15, 2^nd number: 1 24/56

72/15 + 80/56 is 218/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 15 × 56 = 840,
   72/15 = 72 × 56/15 × 56 = 4032/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   80/56 = 80 × 15/56 × 15 = 1200/840
4. Add the two like fractions:
   4032/840 + 1200/840 = 4032 + 1200/840 = 5232/840
5. 5232/840 simplified gives 218/35
6. So, 72/15 + 80/56 = 218/35
   In mixed form: 68/35

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