Answers

Add 84/30 and 15/21

1^st number: 2 24/30, 2^nd number: 15/21

84/30 + 15/21 is 123/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   84/30 = 84 × 7/30 × 7 = 588/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   15/21 = 15 × 10/21 × 10 = 150/210
4. Add the two like fractions:
   588/210 + 150/210 = 588 + 150/210 = 738/210
5. 738/210 simplified gives 123/35
6. So, 84/30 + 15/21 = 123/35
   In mixed form: 318/35

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