Answers

Add 28/54 and 16/63

28/54 + 16/63 is 146/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 63 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   28/54 = 28 × 7/54 × 7 = 196/378
3. Likewise, for the 2nd fraction, since 63 × 6 = 378,
   16/63 = 16 × 6/63 × 6 = 96/378
4. Add the two like fractions:
   196/378 + 96/378 = 196 + 96/378 = 292/378
5. 292/378 simplified gives 146/189
6. So, 28/54 + 16/63 = 146/189

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