Answers

Subtract 84/45 from 12/54

1^st number: 12/54, 2^nd number: 1 39/45

12/54 - 84/45 is -74/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 45 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 54 × 5 = 270,
   12/54 = 12 × 5/54 × 5 = 60/270
3. Likewise, for the 2nd fraction, since 45 × 6 = 270,
   84/45 = 84 × 6/45 × 6 = 504/270
4. Subtract the two like fractions:
   60/270 - 504/270 = 60 - 504/270 = -444/270
5. After reducing the fraction, the answer is -74/45

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