Answer:
There would be 2 times as many groups and twice as big
Step-by-step explanation:
Let the group size be written as x
Dividing by a fraction is the same as multiplying by that fraction's reciprocal
Vocabulary: reciprocal (in math to multiply to equate to 1)
So with this, we can compare x*5/2 to x*5/4
This is the same as comparing 5/2x to 5/4x
Now notice that the numerators in both fractions are equal which means we can compare the denominator
In a fraction, a smaller denominator is a larger number
Comparing 2-->4 is to multiply by 2
Final Answer(a): It will be a 2x larger number
Final answer(b): That means there would be twice as many groups