$\"\"$

Write the mixed numbers as an improper fraction. $\"\"$ $\"\"$

Rewrite the expression

$\"\"$ $\"\"$

To subtract fractions the denominators must be equal.

Find the least common denominator (LCD).

Write the prime factorization of each denominator.

$\"\"$

Multiply the highest power of each factor in either number.

LCM= $\"\"$

LCD of the fractions is 12. $\"\"$

Rewrite the equivalent fractions using the LCD.

$\"\"$

Rewrite the expression using the LCD.

$\"\"$ $\"\"$

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

Subtract the numerators.

= $\"\"$

$\"\"$

Simplify the expression.

Rewrite the improper fraction $\"\"$ as a mixed number.

Begin by dividing 85 by 12. The remainder will be the numerator of the

mixed number’s fraction.

$\"\"$ $\"\"$

The difference is $\"\"$ .