734-45

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

7+34-45

Add 7 and 34.

To write 7 as a fraction with a common denominator, multiply by 44.

7⋅44+34-45

Combine 7 and 44.

7⋅44+34-45

Combine the numerators over the common denominator.

7⋅4+34-45

Simplify the numerator.

Multiply 7 by 4.

28+34-45

Add 28 and 3.

314-45

314-45

314-45

314-45

To write 314 as a fraction with a common denominator, multiply by 55.

314⋅55-45

To write -45 as a fraction with a common denominator, multiply by 44.

314⋅55-45⋅44

Multiply 314 and 55.

31⋅54⋅5-45⋅44

Multiply 4 by 5.

31⋅520-45⋅44

Multiply 45 and 44.

31⋅520-4⋅45⋅4

Multiply 5 by 4.

31⋅520-4⋅420

31⋅520-4⋅420

Combine the numerators over the common denominator.

31⋅5-4⋅420

Multiply 31 by 5.

155-4⋅420

Multiply -4 by 4.

155-1620

Subtract 16 from 155.

13920

13920

The result can be shown in multiple forms.

Exact Form:

13920

Decimal Form:

6.95

Mixed Number Form:

61920

Subtract 7 3/4-4/5