Answer:
The part of all balloons green was,
As per the statement:12 out of 84 balloons Maggie prepared for her brother’s party were green.
⇒ Total number of balloons = 84 and
Number of balloons were green = 12
we have to find what part of all balloons were green.
In a fraction,
The part of all balloons were green =
Substitute the given values we have;
The part of all balloons were green =
Therefore, the part of all balloons green was,