315+1218

Cancel the common factor of 3 and 15.

Factor 3 out of 3.

3(1)15+1218

Cancel the common factors.

Factor 3 out of 15.

3⋅13⋅5+1218

Cancel the common factor.

3⋅13⋅5+1218

Rewrite the expression.

15+1218

15+1218

15+1218

Cancel the common factor of 12 and 18.

Factor 6 out of 12.

15+6(2)18

Cancel the common factors.

Factor 6 out of 18.

15+6⋅26⋅3

Cancel the common factor.

15+6⋅26⋅3

Rewrite the expression.

15+23

15+23

15+23

15+23

To write 15 as a fraction with a common denominator, multiply by 33.

15⋅33+23

To write 23 as a fraction with a common denominator, multiply by 55.

15⋅33+23⋅55

Multiply 15 and 33.

35⋅3+23⋅55

Multiply 5 by 3.

315+23⋅55

Multiply 23 and 55.

315+2⋅53⋅5

Multiply 3 by 5.

315+2⋅515

315+2⋅515

Combine the numerators over the common denominator.

3+2⋅515

Multiply 2 by 5.

3+1015

Add 3 and 10.

1315

1315

The result can be shown in multiple forms.

Exact Form:

1315

Decimal Form:

0.86‾

Evaluate 3/15+12/18