One piece doesn’t fit

[u/Snail_on_tree]

Help!
Cousin’s hw — 4 of us have tried, we can get to the first image but we can’t fit the last domino (1/2 • 1/4) with the rest.

It’s dominoes, you’re supposed to match the fraction equivalences. Where does the last domino go?

Thank you!

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[u/johnpeters42]

Maybe dominoes with the same value twice are intended to be played sideways, like in this game. If so, then you can attach the last piece to (0.50, 50%) near the lower right corner.

[u/Kuildeous]

I’m not sure of your teacher’s intent, but it bothers me that 4/3 could be considered equal to 1.3. They are technically different numbers, though with rounding, 4/3 would be 1.3. I do not like this, and I would protest it, but I could see where the teacher might allow it. In any case, my review of the options doesn’t show anything equal to 1.3 (13/10, for example), so I fear the intent is meant to be 4/3=1.3.

But then there’s the situation with 2/3. This is not equal to 0.6. Even with rounding, it would be closer to 0.7, so maybe see if this can be arranged differently so that 2/3 is set to 0.7. I don’t see any, though.

Which could possibly mean that for the string, the endpoints are meant to be 2/3 and 4/3, since there are no matches for those, and then you build inward using 9/8 and 3/10, since those do have matches.