Answers

Add 30/42 and 70/10

1^st number: 30/42, 2^nd number: 7 0/10

30/42 + 70/10 is 54/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 10 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   30/42 = 30 × 5/42 × 5 = 150/210
3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
   70/10 = 70 × 21/10 × 21 = 1470/210
4. Add the two like fractions:
   150/210 + 1470/210 = 150 + 1470/210 = 1620/210
5. 1620/210 simplified gives 54/7
6. So, 30/42 + 70/10 = 54/7
   In mixed form: 75/7

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