Maths. Saw this on our video? Tap the answer your child chose to check it, then open the worked answer to see why the tempting wrong options catch so many children out.
Question 1Aim for about 60 seconds
A jug is full. 5/12 of it is poured out, then 5/12 of the whole jug. What fraction of the jug is left?
Show the worked answer
Answer: E, 1/6
How to work it out
Out of 12 equal parts, 5 + 5 = 10 are poured out, leaving 2/12 = 1/6.
Why the other options are wrong
A (1/12): This takes one pour from the other; both pours come out of the whole jug.
B (7/12): 7/12 is what was left after the first pour only; the second pour still has to come off.
C (5/6): 5/6 is the amount poured out, not the amount left.
D (2/24): The denominator stays 12; the parts of the jug do not double when you subtract.
Want more like this?
Fractions of amounts, simplifying, comparing and adding.
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