158+25+-78

To write 158 as a fraction with a common denominator, multiply by 55.

158⋅55+25+-78

To write 25 as a fraction with a common denominator, multiply by 88.

158⋅55+25⋅88+-78

Multiply 158 and 55.

15⋅58⋅5+25⋅88+-78

Multiply 8 by 5.

15⋅540+25⋅88+-78

Multiply 25 and 88.

15⋅540+2⋅85⋅8+-78

Multiply 5 by 8.

15⋅540+2⋅840+-78

15⋅540+2⋅840+-78

Combine the numerators over the common denominator.

15⋅5+2⋅840+-78

Multiply 15 by 5.

75+2⋅840+-78

Multiply 2 by 8.

75+1640+-78

Add 75 and 16.

9140+-78

9140+-78

To write -78 as a fraction with a common denominator, multiply by 55.

9140+-78⋅55

Multiply -78 and 55.

9140+-7⋅58⋅5

Multiply 8 by 5.

9140+-7⋅540

9140+-7⋅540

Combine the numerators over the common denominator.

91-7⋅540

Multiply -7 by 5.

91-3540

Subtract 35 from 91.

5640

5640

Factor 8 out of 56.

8(7)40

Cancel the common factors.

Factor 8 out of 40.

8⋅78⋅5

Cancel the common factor.

8⋅78⋅5

Rewrite the expression.

75

75

75

Factor 15/8+2/5+-7/8