Answers

Add 84/56 and 1/80

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

84/56 + 1/80 is 121/80.

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,
   1/80 = 1 × 7/80 × 7 = 7/560
4. Add the two like fractions:
   840/560 + 7/560 = 840 + 7/560 = 847/560
5. 847/560 simplified gives 121/80
6. So, 84/56 + 1/80 = 121/80
   In mixed form: 141/80

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