Answers

Add 25/63 and 4/45

25/63 + 4/45 is 17/35.

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,
   25/63 = 25 × 5/63 × 5 = 125/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   4/45 = 4 × 7/45 × 7 = 28/315
4. Add the two like fractions:
   125/315 + 28/315 = 125 + 28/315 = 153/315
5. 153/315 simplified gives 17/35
6. So, 25/63 + 4/45 = 17/35

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