Answers

Add 12/63 and 42/54

12/63 + 42/54 is 61/63.

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,
   12/63 = 12 × 6/63 × 6 = 72/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   42/54 = 42 × 7/54 × 7 = 294/378
4. Add the two like fractions:
   72/378 + 294/378 = 72 + 294/378 = 366/378
5. 366/378 simplified gives 61/63
6. So, 12/63 + 42/54 = 61/63

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