Answers

Add 9/63 and 20/54

9/63 + 20/54 is 97/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 63 × 6 = 378,
   9/63 = 9 × 6/63 × 6 = 54/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   20/54 = 20 × 7/54 × 7 = 140/378
4. Add the two like fractions:
   54/378 + 140/378 = 54 + 140/378 = 194/378
5. 194/378 simplified gives 97/189
6. So, 9/63 + 20/54 = 97/189

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