Answers

Add 56/5 and 90/84

1^st number: 11 1/5, 2^nd number: 1 6/84

56/5 + 90/84 is 859/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 5 × 84 = 420,
   56/5 = 56 × 84/5 × 84 = 4704/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   90/84 = 90 × 5/84 × 5 = 450/420
4. Add the two like fractions:
   4704/420 + 450/420 = 4704 + 450/420 = 5154/420
5. 5154/420 simplified gives 859/70
6. So, 56/5 + 90/84 = 859/70
   In mixed form: 1219/70

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