To solve the equation, you need to isolate the variable on one side of the equation.
Let's represent the unknown number as "x".
Blank divided by 2 can be expressed as x divided by 2, which can be written as (1/2)x.
The equation can now be written as:
(1/2)x = 4/10
To get rid of the fraction on the left side, multiply both sides of the equation by 2:
2*(1/2)x = 2*(4/10)
x = 8/10
Simplifying the right side of the equation:
x = 4/5
Therefore, the unknown number, represented by "blank", is 4/5.
blank divided by 2= 4/10
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