Solutions by everydaycalculation.com

27 - 4254 is -3163.

- Find the least common denominator or LCM of the two denominators:

LCM of 7 and 54 is**378**

Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,

27 = 2 × 547 × 54 = 108378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,

4254 = 42 × 754 × 7 = 294378 - Subtract the two like fractions:

108378 - 294378 = 108 - 294378 = -186378 - After reducing the fraction, the answer is -3163

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