Answers

Add 56/5 and 42/21

1^st number: 11 1/5, 2^nd number: 2 0/21

56/5 + 42/21 is 66/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 21 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 5 × 21 = 105,
   56/5 = 56 × 21/5 × 21 = 1176/105
3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
   42/21 = 42 × 5/21 × 5 = 210/105
4. Add the two like fractions:
   1176/105 + 210/105 = 1176 + 210/105 = 1386/105
5. 1386/105 simplified gives 66/5
6. So, 56/5 + 42/21 = 66/5
   In mixed form: 131/5

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