Answers

Add 54/63 and 30/36

54/63 + 30/36 is 71/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   54/63 = 54 × 4/63 × 4 = 216/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   30/36 = 30 × 7/36 × 7 = 210/252
4. Add the two like fractions:
   216/252 + 210/252 = 216 + 210/252 = 426/252
5. 426/252 simplified gives 71/42
6. So, 54/63 + 30/36 = 71/42
   In mixed form: 129/42

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