Answers

Add 54/80 and 75/28

1^st number: 54/80, 2^nd number: 2 19/28

54/80 + 75/28 is 939/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 28 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   54/80 = 54 × 7/80 × 7 = 378/560
3. Likewise, for the 2nd fraction, since 28 × 20 = 560,
   75/28 = 75 × 20/28 × 20 = 1500/560
4. Add the two like fractions:
   378/560 + 1500/560 = 378 + 1500/560 = 1878/560
5. 1878/560 simplified gives 939/280
6. So, 54/80 + 75/28 = 939/280
   In mixed form: 399/280

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