Answers

Add 54/80 and 63/45

1^st number: 54/80, 2^nd number: 1 18/45

54/80 + 63/45 is 83/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 45 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   54/80 = 54 × 9/80 × 9 = 486/720
3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
   63/45 = 63 × 16/45 × 16 = 1008/720
4. Add the two like fractions:
   486/720 + 1008/720 = 486 + 1008/720 = 1494/720
5. 1494/720 simplified gives 83/40
6. So, 54/80 + 63/45 = 83/40
   In mixed form: 23/40

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