Answers

Add 30/63 and 18/28

30/63 + 18/28 is 47/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 28 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   30/63 = 30 × 4/63 × 4 = 120/252
3. Likewise, for the 2nd fraction, since 28 × 9 = 252,
   18/28 = 18 × 9/28 × 9 = 162/252
4. Add the two like fractions:
   120/252 + 162/252 = 120 + 162/252 = 282/252
5. 282/252 simplified gives 47/42
6. So, 30/63 + 18/28 = 47/42
   In mixed form: 15/42

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