Answers

Add 84/56 and 3/80

1^st number: 1 28/56, 2^nd number: 3/80

84/56 + 3/80 is 123/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 56 × 10 = 560,
   84/56 = 84 × 10/56 × 10 = 840/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   3/80 = 3 × 7/80 × 7 = 21/560
4. Add the two like fractions:
   840/560 + 21/560 = 840 + 21/560 = 861/560
5. 861/560 simplified gives 123/80
6. So, 84/56 + 3/80 = 123/80
   In mixed form: 143/80

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