01
Have a go first
The Question
Which is larger, 5/8 or 7/12? By exactly how much?
02
Then check together
The Answer
Reveal the Answer
5/8 is larger, by 1/24
LCM of 8 and 12 is 24. 5/8 = 15/24 and 7/12 = 14/24, so 5/8 wins by 1/24. Show why cross-multiplying works as a check, not as the method.
Now watch the solution
Pencil and paper
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