Adding and Subtracting Rational Numbers

Solve the following equation:

 $\frac{1}{2}-\frac{3}{4}=$  

• -1/4

• 1

• -1

• 1/4

Solve the following equation:

 $\frac{7}{10}-\frac{9}{10}=$ 

• 5

• -1/5

• -8/5

• 8/5

Solve the following equation:

 $-6.5+\left(-0.5\right)=$  

• -7

• 7

• 6

• -6

Solve the following equation:

 $\frac{1}{4}-\frac{5}{6}=$  

• 13/12

• - 13/12

• - 7/12

• 7/12

Solve the following equation:
 $-6.23-7.5\ =$  

• 13.73

• 1.3

• -1.2

• -13.73