Answers

Add 54/80 and 64/60

1^st number: 54/80, 2^nd number: 1 4/60

54/80 + 64/60 is 209/120.

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,
   54/80 = 54 × 3/80 × 3 = 162/240
3. Likewise, for the 2nd fraction, since 60 × 4 = 240,
   64/60 = 64 × 4/60 × 4 = 256/240
4. Add the two like fractions:
   162/240 + 256/240 = 162 + 256/240 = 418/240
5. 418/240 simplified gives 209/120
6. So, 54/80 + 64/60 = 209/120
   In mixed form: 189/120

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