(23-16)s

To write 23 as a fraction with a common denominator, multiply by 22.

(23⋅22-16)s

Multiply 23 and 22.

(2⋅23⋅2-16)s

Multiply 3 by 2.

(2⋅26-16)s

(2⋅26-16)s

Combine the numerators over the common denominator.

2⋅2-16s

Multiply 2 by 2.

4-16s

Subtract 1 from 4.

36s

36s

Factor 3 out of 3.

3(1)6s

Cancel the common factors.

Factor 3 out of 6.

3⋅13⋅2s

Cancel the common factor.

3⋅13⋅2s

Rewrite the expression.

12s

12s

12s

Combine 12 and s.

s2

Simplify (2/3-1/6)s