78-56
To write 78 as a fraction with a common denominator, multiply by 33.
78⋅33-56
To write -56 as a fraction with a common denominator, multiply by 44.
78⋅33-56⋅44
Multiply 78 and 33.
7⋅38⋅3-56⋅44
Multiply 8 by 3.
7⋅324-56⋅44
Multiply 56 and 44.
7⋅324-5⋅46⋅4
Multiply 6 by 4.
7⋅324-5⋅424
7⋅324-5⋅424
Combine the numerators over the common denominator.
7⋅3-5⋅424
Multiply 7 by 3.
21-5⋅424
Multiply -5 by 4.
21-2024
Subtract 20 from 21.
124
124
The result can be shown in multiple forms.
Exact Form:
124
Decimal Form:
0.0416‾
Subtract 7/8-5/6