Answers

Add 18/63 and 18/35

18/63 + 18/35 is 4/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 35 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   18/63 = 18 × 5/63 × 5 = 90/315
3. Likewise, for the 2nd fraction, since 35 × 9 = 315,
   18/35 = 18 × 9/35 × 9 = 162/315
4. Add the two like fractions:
   90/315 + 162/315 = 90 + 162/315 = 252/315
5. 252/315 simplified gives 4/5
6. So, 18/63 + 18/35 = 4/5

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