Answers

Add 45/56 and 80/30

1^st number: 45/56, 2^nd number: 2 20/30

45/56 + 80/30 is 583/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 30 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   45/56 = 45 × 15/56 × 15 = 675/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   80/30 = 80 × 28/30 × 28 = 2240/840
4. Add the two like fractions:
   675/840 + 2240/840 = 675 + 2240/840 = 2915/840
5. 2915/840 simplified gives 583/168
6. So, 45/56 + 80/30 = 583/168
   In mixed form: 379/168

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