Answers

Add 72/15 and 70/56

1^st number: 4 12/15, 2^nd number: 1 14/56

72/15 + 70/56 is 121/20.

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,
   70/56 = 70 × 15/56 × 15 = 1050/840
4. Add the two like fractions:
   4032/840 + 1050/840 = 4032 + 1050/840 = 5082/840
5. 5082/840 simplified gives 121/20
6. So, 72/15 + 70/56 = 121/20
   In mixed form: 61/20

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