Answers

Add 4/63 and 7/45

4/63 + 7/45 is 23/105.

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,
   7/45 = 7 × 7/45 × 7 = 49/315
4. Add the two like fractions:
   20/315 + 49/315 = 20 + 49/315 = 69/315
5. 69/315 simplified gives 23/105
6. So, 4/63 + 7/45 = 23/105

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