Answers

Add 80/60 and 28/72

1^st number: 1 20/60, 2^nd number: 28/72

80/60 + 28/72 is 31/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 60 × 6 = 360,
   80/60 = 80 × 6/60 × 6 = 480/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   28/72 = 28 × 5/72 × 5 = 140/360
4. Add the two like fractions:
   480/360 + 140/360 = 480 + 140/360 = 620/360
5. 620/360 simplified gives 31/18
6. So, 80/60 + 28/72 = 31/18
   In mixed form: 113/18

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