Answers

Add 8/10 and 42/21

1^st number: 8/10, 2^nd number: 2 0/21

8/10 + 42/21 is 14/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 10 × 21 = 210,
   8/10 = 8 × 21/10 × 21 = 168/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   42/21 = 42 × 10/21 × 10 = 420/210
4. Add the two like fractions:
   168/210 + 420/210 = 168 + 420/210 = 588/210
5. 588/210 simplified gives 14/5
6. So, 8/10 + 42/21 = 14/5
   In mixed form: 24/5

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