Adding, Subtracting, and Multiplying Rational Numbers

Add. Write in simplest form.

$$\frac{3}{5}+\frac{8}{5}$$      

$$3.6+\left(-2.4\right)$$  

(a)  

$$-4.5+\left(-4.7\right)$$  

(a)  

On Saturday, you biked 7.5 miles. On Sunday, you biked 8.9 miles.

How many miles did you bike altogether?

(a)   miles

Subtract. Write the fractions in simplest form.

$$-3-\frac{7}{2}$$   

Subtract. Write the fractions in simplest form.

   $$-\frac{1}{5}-\left(-\frac{5}{11}\right)$$  

Subtract. Write the fractions in simplest form.

   $$-2\frac{2}{3}-4\frac{1}{6}$$    

Subtract. Write the fractions in simplest form.

   $$-3\frac{1}{9}-\left(-2\frac{1}{3}\right)$$     

$$\frac{2}{5}\ \times\ \frac{-1}{2}$$