Answers

Add 21/18 and 4/63

1^st number: 1 3/18, 2^nd number: 4/63

21/18 + 4/63 is 155/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   21/18 = 21 × 7/18 × 7 = 147/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   4/63 = 4 × 2/63 × 2 = 8/126
4. Add the two like fractions:
   147/126 + 8/126 = 147 + 8/126 = 155/126
5. So, 21/18 + 4/63 = 155/126
   In mixed form: 129/126

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