Answers

Add 72/56 and 5/20

1^st number: 1 16/56, 2^nd number: 5/20

72/56 + 5/20 is 43/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 20 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   72/56 = 72 × 5/56 × 5 = 360/280
3. Likewise, for the 2nd fraction, since 20 × 14 = 280,
   5/20 = 5 × 14/20 × 14 = 70/280
4. Add the two like fractions:
   360/280 + 70/280 = 360 + 70/280 = 430/280
5. 430/280 simplified gives 43/28
6. So, 72/56 + 5/20 = 43/28
   In mixed form: 115/28

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