Answers

Add 63/60 and 42/9

1^st number: 1 3/60, 2^nd number: 4 6/9

63/60 + 42/9 is 343/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 9 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 60 × 3 = 180,
   63/60 = 63 × 3/60 × 3 = 189/180
3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
   42/9 = 42 × 20/9 × 20 = 840/180
4. Add the two like fractions:
   189/180 + 840/180 = 189 + 840/180 = 1029/180
5. 1029/180 simplified gives 343/60
6. So, 63/60 + 42/9 = 343/60
   In mixed form: 543/60

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