Answers

Add 20/56 and 84/80

1^st number: 20/56, 2^nd number: 1 4/80

20/56 + 84/80 is 197/140.

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,
   20/56 = 20 × 10/56 × 10 = 200/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   84/80 = 84 × 7/80 × 7 = 588/560
4. Add the two like fractions:
   200/560 + 588/560 = 200 + 588/560 = 788/560
5. 788/560 simplified gives 197/140
6. So, 20/56 + 84/80 = 197/140
   In mixed form: 157/140

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