# Chapter 3 - Adding and Subtracting Fractions - Review Exercises: 28

$\frac{17}{36}$

#### Work Step by Step

$\frac{11}{12}$ - $\frac{4}{9}$ ____ The least common multiple of 12 and 9 is 36. Rewrite both fractions as fractions with a least common denominator of 36. Rewrite as like fraction $\frac{11}{12}$ - $\frac{4}{9}$= $\frac{33}{36}$ - $\frac{16}{36}$ Subtract the numerator = $\frac{33 - 16}{36}$ = $\frac{17}{36}$ $\frac{17}{36}$ is in lowest term

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