Answers

Add 7/63 and 4/45

7/63 + 4/45 is 1/5.

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,
   7/63 = 7 × 5/63 × 5 = 35/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   4/45 = 4 × 7/45 × 7 = 28/315
4. Add the two like fractions:
   35/315 + 28/315 = 35 + 28/315 = 63/315
5. 63/315 simplified gives 1/5
6. So, 7/63 + 4/45 = 1/5

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