Answers

Add 28/63 and 3/54

28/63 + 3/54 is 1/2.

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,
   28/63 = 28 × 6/63 × 6 = 168/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   3/54 = 3 × 7/54 × 7 = 21/378
4. Add the two like fractions:
   168/378 + 21/378 = 168 + 21/378 = 189/378
5. 189/378 simplified gives 1/2
6. So, 28/63 + 3/54 = 1/2

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