Pre-Algebra Examples

$\frac{4 x}{9} + \frac{7}{3}$

Step 1

To write $\frac{7}{3}$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{4 x}{9} + \frac{7}{3} \cdot \frac{3}{3}$

Step 2

Write each expression with a common denominator of $9$ , by multiplying each by an appropriate factor of $1$ .

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Step 2.1

Multiply $\frac{7}{3}$ by $\frac{3}{3}$ .

$\frac{4 x}{9} + \frac{7 \cdot 3}{3 \cdot 3}$

Step 2.2

Multiply $3$ by $3$ .

$\frac{4 x}{9} + \frac{7 \cdot 3}{9}$

Step 3

Combine the numerators over the common denominator.

$\frac{4 x + 7 \cdot 3}{9}$

Step 4

Multiply $7$ by $3$ .

$\frac{4 x + 21}{9}$