12+458

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

12+4+58

Add 4 and 58.

To write 4 as a fraction with a common denominator, multiply by 88.

12+4⋅88+58

Combine 4 and 88.

12+4⋅88+58

Combine the numerators over the common denominator.

12+4⋅8+58

Simplify the numerator.

Multiply 4 by 8.

12+32+58

Add 32 and 5.

12+378

12+378

12+378

12+378

To write 12 as a fraction with a common denominator, multiply by 44.

12⋅44+378

Multiply 12 and 44.

42⋅4+378

Multiply 2 by 4.

48+378

48+378

Combine the numerators over the common denominator.

4+378

Add 4 and 37.

418

The result can be shown in multiple forms.

Exact Form:

418

Decimal Form:

5.125

Mixed Number Form:

518

Add 1/2+4 5/8