Answers

Add 15/48 and 54/45

1^st number: 15/48, 2^nd number: 1 9/45

15/48 + 54/45 is 121/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 45 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 48 × 15 = 720,
   15/48 = 15 × 15/48 × 15 = 225/720
3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
   54/45 = 54 × 16/45 × 16 = 864/720
4. Add the two like fractions:
   225/720 + 864/720 = 225 + 864/720 = 1089/720
5. 1089/720 simplified gives 121/80
6. So, 15/48 + 54/45 = 121/80
   In mixed form: 141/80

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