Answers

Add 12/10 and 84/42

1^st number: 1 2/10, 2^nd number: 2 0/42

12/10 + 84/42 is 16/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 42 is 210
2. For the 1st fraction, since 10 × 21 = 210,
   12/10 = 12 × 21/10 × 21 = 252/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   84/42 = 84 × 5/42 × 5 = 420/210
4. Add the two fractions:
   252/210 + 420/210 = 252 + 420/210 = 672/210
5. After reducing the fraction, the answer is 16/5
6. In mixed form: 31/5

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