Answers

Add 80/7 and 28/60

1^st number: 11 3/7, 2^nd number: 28/60

80/7 + 28/60 is 1249/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 7 × 60 = 420,
   80/7 = 80 × 60/7 × 60 = 4800/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   28/60 = 28 × 7/60 × 7 = 196/420
4. Add the two like fractions:
   4800/420 + 196/420 = 4800 + 196/420 = 4996/420
5. 4996/420 simplified gives 1249/105
6. So, 80/7 + 28/60 = 1249/105
   In mixed form: 1194/105

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