Answers

Add 28/80 and 7/60

28/80 + 7/60 is 7/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 60 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 80 × 3 = 240,
   28/80 = 28 × 3/80 × 3 = 84/240
3. Likewise, for the 2nd fraction, since 60 × 4 = 240,
   7/60 = 7 × 4/60 × 4 = 28/240
4. Add the two like fractions:
   84/240 + 28/240 = 84 + 28/240 = 112/240
5. 112/240 simplified gives 7/15
6. So, 28/80 + 7/60 = 7/15

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