Answers

Add 84/15 and 20/56

1^st number: 5 9/15, 2^nd number: 20/56

84/15 + 20/56 is 417/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 15 × 56 = 840,
   84/15 = 84 × 56/15 × 56 = 4704/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   20/56 = 20 × 15/56 × 15 = 300/840
4. Add the two like fractions:
   4704/840 + 300/840 = 4704 + 300/840 = 5004/840
5. 5004/840 simplified gives 417/70
6. So, 84/15 + 20/56 = 417/70
   In mixed form: 567/70

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