Subtract 7 3/4-4/5

Math
734-45
Convert 734 to an improper fraction.
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A mixed number is an addition of its whole and fractional parts.
7+34-45
Add 7 and 34.
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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.
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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
Write each expression with a common denominator of 20, by multiplying each by an appropriate factor of 1.
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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
Simplify the numerator.
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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

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