Answers

Subtract 18/54 from 28/49

28/49 - 18/54 is 5/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 54 is 2646
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2646
2. For the 1st fraction, since 49 × 54 = 2646,
   28/49 = 28 × 54/49 × 54 = 1512/2646
3. Likewise, for the 2nd fraction, since 54 × 49 = 2646,
   18/54 = 18 × 49/54 × 49 = 882/2646
4. Subtract the two like fractions:
   1512/2646 - 882/2646 = 1512 - 882/2646 = 630/2646
5. After reducing the fraction, the answer is 5/21

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