# Solve for u u+4/5=5 3/4 u+45=534
Convert 534 to an improper fraction.
A mixed number is an addition of its whole and fractional parts.
u+45=5+34
Add 5 and 34.
To write 5 as a fraction with a common denominator, multiply by 44.
u+45=5⋅44+34
Combine 5 and 44.
u+45=5⋅44+34
Combine the numerators over the common denominator.
u+45=5⋅4+34
Simplify the numerator.
Multiply 5 by 4.
u+45=20+34
Add 20 and 3.
u+45=234
u+45=234
u+45=234
u+45=234
Move all terms not containing u to the right side of the equation.
Subtract 45 from both sides of the equation.
u=234-45
To write 234 as a fraction with a common denominator, multiply by 55.
u=234⋅55-45
To write -45 as a fraction with a common denominator, multiply by 44.
u=234⋅55-45⋅44
Write each expression with a common denominator of 20, by multiplying each by an appropriate factor of 1.
Multiply 234 and 55.
u=23⋅54⋅5-45⋅44
Multiply 4 by 5.
u=23⋅520-45⋅44
Multiply 45 and 44.
u=23⋅520-4⋅45⋅4
Multiply 5 by 4.
u=23⋅520-4⋅420
u=23⋅520-4⋅420
Combine the numerators over the common denominator.
u=23⋅5-4⋅420
Simplify the numerator.
Multiply 23 by 5.
u=115-4⋅420
Multiply -4 by 4.
u=115-1620
Subtract 16 from 115.
u=9920
u=9920
u=9920
The result can be shown in multiple forms.
Exact Form:
u=9920
Decimal Form:
u=4.95
Mixed Number Form:
u=41920
Solve for u u+4/5=5 3/4

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