# Chapter 3 - Adding and Subtracting Fractions - 3.4 Adding and Subtracting Mixed Numbers - 3.4 Exercises - Page 229: 35

$\frac{15}{4}$

#### Work Step by Step

1. Multiply the denominator by the the whole number $4\times3 = 12$ 2. Add the numerator: $12+3 = 15$ 3. Put this sum over the original denominator to find the improper fraction $\frac{15}{4}$

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