85-43

To write 85 as a fraction with a common denominator, multiply by 33.

85⋅33-43

To write -43 as a fraction with a common denominator, multiply by 55.

85⋅33-43⋅55

Multiply 85 and 33.

8⋅35⋅3-43⋅55

Multiply 5 by 3.

8⋅315-43⋅55

Multiply 43 and 55.

8⋅315-4⋅53⋅5

Multiply 3 by 5.

8⋅315-4⋅515

8⋅315-4⋅515

Combine the numerators over the common denominator.

8⋅3-4⋅515

Multiply 8 by 3.

24-4⋅515

Multiply -4 by 5.

24-2015

Subtract 20 from 24.

415

415

The result can be shown in multiple forms.

Exact Form:

415

Decimal Form:

0.26‾

Evaluate 8/5-4/3