Answers

Add 4/63 and 25/45

4/63 + 25/45 is 13/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   4/63 = 4 × 5/63 × 5 = 20/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   25/45 = 25 × 7/45 × 7 = 175/315
4. Add the two like fractions:
   20/315 + 175/315 = 20 + 175/315 = 195/315
5. 195/315 simplified gives 13/21
6. So, 4/63 + 25/45 = 13/21

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