Answers

Add 4/30 and 63/21

1^st number: 4/30, 2^nd number: 3 0/21

4/30 + 63/21 is 47/15.

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,
   4/30 = 4 × 7/30 × 7 = 28/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   63/21 = 63 × 10/21 × 10 = 630/210
4. Add the two like fractions:
   28/210 + 630/210 = 28 + 630/210 = 658/210
5. 658/210 simplified gives 47/15
6. So, 4/30 + 63/21 = 47/15
   In mixed form: 32/15

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