# Erica mixed 1 1/5 cups of wheat flour,2 2/5 cups rye flour, and 2 3/5 cups white flour together. How many cups of flour did she mix together?

Jun 18, 2018

A. $6 \frac{1}{5}$

#### Explanation:

1. Add all the whole numbers $\to 1 + 2 + 2 = 5$
2. Add the fractions $\to \frac{1}{5} + \frac{2}{5} + \frac{3}{5} = \frac{6}{5}$
3. all of the fractions have a common denominator $\left(5\right)$, so you simply add the numerator (top digit)
4. Simplify improper fraction to a mixed number $\to \frac{6}{5} = 1 \frac{1}{5}$
5. Add whole and mixed number $\to 5 + 1 \frac{1}{5} = 6 \frac{1}{5}$
Jun 18, 2018

The answer is "A") $6 \frac{1}{5}$

#### Explanation:

color(red)(1 1/5) + color(blue)(2 2/5) + color(green)(2 3/5

Since all of the fractions have the same denominator, we can add the whole numbers and the numerators of the fractions.

color(red)1 + color(blue)2 + color(green)2 + color(red)(1/5) + color(blue)(2/5) + color(green)(3/5

5 + color(red)(1/5)+color(blue)(2/5)+color(green)(3/5

$5 + \frac{6}{5}$
Simplify $\frac{6}{5}$ to $1 \frac{1}{5}$.
$5 + 1 \frac{1}{5}$
Simplify $5 + 1$ to $6$.
$6 \frac{1}{5}$