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Write the mixed numbers as an improper fraction.

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Rewrite the expression

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To subtract fractions the denominators must be equal.

Find the least common denominator (LCD).

Write the prime factorization of each denominator.

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Multiply the highest power of each factor in either number.

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LCD of the fractions is 54. $\"\"$

Rewrite the equivalent fractions using the LCD.

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Rewrite the expression using the LCD.

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As denominators are same, write difference of numerators over denominator.

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The difference is $\"\"$ .