Arecipe calls for 2 1/ 2 cups of flour i only have 1 2/ 3 how much more do i need

You would need 5/6 more cups of flour.

Step-by-step explanation:

2 1/2 - 1 2/3 = 5/6 cups more would be needed.

2 1/3

Step-by-step explanation:

Think of 2 1/2 as 13/6 and 1 2/3 as 5/3

then you subtract 13-5=8. 8/3 is what we need 8/3 simplified is 2 1/3

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.