Answers

Add 4/63 and 15/30

4/63 + 15/30 is 71/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 30 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   4/63 = 4 × 10/63 × 10 = 40/630
3. Likewise, for the 2nd fraction, since 30 × 21 = 630,
   15/30 = 15 × 21/30 × 21 = 315/630
4. Add the two like fractions:
   40/630 + 315/630 = 40 + 315/630 = 355/630
5. 355/630 simplified gives 71/126
6. So, 4/63 + 15/30 = 71/126

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