# Calculate: x^2+16=0

## Expression: $\frac{5}{3} - \frac{6}{5}$

To write 53 as a fraction with a common denominator, multiply by 55.

$$\frac{5}{3}\cdot\frac{5}{5}-\frac{6}{5}$$

To write -65 as a fraction with a common denominator, multiply by 33.

$$\frac{5}{3}\cdot\frac{5}{5}-\frac{6}{5}\cdot\frac{3}{3}$$

Write each expression with a common denominator of 15, by multiplying each by an appropriate factor of 1.

$$\frac{5\cdot5}{15}-\frac{6\cdot3}{15}$$

Combine the numerators over the common denominator.

$$\frac{5\cdot5-6\cdot3}{15}$$

Simplify the numerator.

$$\frac{7}{15}$$

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