Answers

Add 70/10 and 10/21

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

70/10 + 10/21 is 157/21.

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,
   70/10 = 70 × 21/10 × 21 = 1470/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   10/21 = 10 × 10/21 × 10 = 100/210
4. Add the two like fractions:
   1470/210 + 100/210 = 1470 + 100/210 = 1570/210
5. 1570/210 simplified gives 157/21
6. So, 70/10 + 10/21 = 157/21
   In mixed form: 710/21

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