Answers

Add 15/14 and 54/80

1^st number: 1 1/14, 2^nd number: 54/80

15/14 + 54/80 is 489/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 14 × 40 = 560,
   15/14 = 15 × 40/14 × 40 = 600/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   54/80 = 54 × 7/80 × 7 = 378/560
4. Add the two like fractions:
   600/560 + 378/560 = 600 + 378/560 = 978/560
5. 978/560 simplified gives 489/280
6. So, 15/14 + 54/80 = 489/280
   In mixed form: 1209/280

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