2/5. Divide both numbers by 5 and there you go
He is incorrect. you first have to find the least common denominator and that is 6. so then you would have 3/6- 2/6. that would equal 1/6.
Circle a 2 by 3 area (6 squares) on the array. 0 0 0
0 0 0
You have to use a proportion.
3.5/18= 1.5/x
3.5x=27
x= 7.7 cm
