Answers

Add 40/21 and 70/10

1^st number: 1 19/21, 2^nd number: 7 0/10

40/21 + 70/10 is 187/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 10 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   40/21 = 40 × 10/21 × 10 = 400/210
3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
   70/10 = 70 × 21/10 × 21 = 1470/210
4. Add the two like fractions:
   400/210 + 1470/210 = 400 + 1470/210 = 1870/210
5. 1870/210 simplified gives 187/21
6. So, 40/21 + 70/10 = 187/21
   In mixed form: 819/21

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