45-310

To write 45 as a fraction with a common denominator, multiply by 22.

45⋅22-310

Multiply 45 and 22.

4⋅25⋅2-310

Multiply 5 by 2.

4⋅210-310

4⋅210-310

Combine the numerators over the common denominator.

4⋅2-310

Multiply 4 by 2.

8-310

Subtract 3 from 8.

510

510

Factor 5 out of 5.

5(1)10

Cancel the common factors.

Factor 5 out of 10.

5⋅15⋅2

Cancel the common factor.

5⋅15⋅2

Rewrite the expression.

12

12

12

The result can be shown in multiple forms.

Exact Form:

12

Decimal Form:

0.5

Subtract 4/5-3/10