Same Whole?

Tell when a comparison can't be made.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 59

Here's a puzzle. Jamie ate 3 fourths of a small pizza. Zach ate half of a large pizza. Who ate more?
We can't tell! 3 fourths is more than one half only when they're parts of the same whole. These pizzas are different sizes.
If they had shared one pizza, Jamie would have more. The fractions alone decide it when the whole is the same.
So before comparing, always ask: fractions of what?

Georgia's K-12 Mathematics Standards:

5.NR.3.2 — Compare and order up to three fractions with different numerators and/or different denominators by flexibly using a variety of tools and strategies.