312-1913

A mixed number is an addition of its whole and fractional parts.

3+12-1913

Add 3 and 12.

To write 3 as a fraction with a common denominator, multiply by 22.

3⋅22+12-1913

Combine 3 and 22.

3⋅22+12-1913

Combine the numerators over the common denominator.

3⋅2+12-1913

Simplify the numerator.

Multiply 3 by 2.

6+12-1913

Add 6 and 1.

72-1913

72-1913

72-1913

72-1913

A mixed number is an addition of its whole and fractional parts.

72-(19+13)

Add 19 and 13.

To write 19 as a fraction with a common denominator, multiply by 33.

72-(19⋅33+13)

Combine 19 and 33.

72-(19⋅33+13)

Combine the numerators over the common denominator.

72-19⋅3+13

Simplify the numerator.

Multiply 19 by 3.

72-57+13

Add 57 and 1.

72-583

72-583

72-583

72-583

To write 72 as a fraction with a common denominator, multiply by 33.

72⋅33-583

To write -583 as a fraction with a common denominator, multiply by 22.

72⋅33-583⋅22

Multiply 72 and 33.

7⋅32⋅3-583⋅22

Multiply 2 by 3.

7⋅36-583⋅22

Multiply 583 and 22.

7⋅36-58⋅23⋅2

Multiply 3 by 2.

7⋅36-58⋅26

7⋅36-58⋅26

Combine the numerators over the common denominator.

7⋅3-58⋅26

Multiply 7 by 3.

21-58⋅26

Multiply -58 by 2.

21-1166

Subtract 116 from 21.

-956

-956

Move the negative in front of the fraction.

-956

The result can be shown in multiple forms.

Exact Form:

-956

Decimal Form:

-15.83‾

Mixed Number Form:

-1556

Evaluate 3 1/2-19 1/3