Answers

Add 30/70 and 98/21

1^st number: 30/70, 2^nd number: 4 14/21

30/70 + 98/21 is 107/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   30/70 = 30 × 3/70 × 3 = 90/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   98/21 = 98 × 10/21 × 10 = 980/210
4. Add the two like fractions:
   90/210 + 980/210 = 90 + 980/210 = 1070/210
5. 1070/210 simplified gives 107/21
6. So, 30/70 + 98/21 = 107/21
   In mixed form: 52/21

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