Happy to help :-)
Please provide us with questions
A square, rectangle, rhombus (I think)
3/2 is an improper fraction, where the denominator (bottom number) is smaller than the top (numerator)
1 1/2 is this same fraction but now it is not improper.
( 9 ÷ 3 ) x 2 = 3 x 2 = 6 marbles ;
Your going to divide them then take the same score and double it then subtract the total and the doubles number