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how do you write 7/9 in a decimal and does the decimal terminate or repeat
So therefore the decimal actually recurs. You can tell if a decimal recurs: If the denominator can be factorised into 2s and 5s, then it will terminate e.g. 1/20=1/5*2*2 so it terminates. If you can't factorise it with 2s and 5s the decimal will recur e.g. 7/9=7/1*9 so it recurs.
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