Answers

Add 70/21 and 40/30

1^st number: 3 7/21, 2^nd number: 1 10/30

70/21 + 40/30 is 14/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   70/21 = 70 × 10/21 × 10 = 700/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   40/30 = 40 × 7/30 × 7 = 280/210
4. Add the two like fractions:
   700/210 + 280/210 = 700 + 280/210 = 980/210
5. 980/210 simplified gives 14/3
6. So, 70/21 + 40/30 = 14/3
   In mixed form: 42/3

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