Question

# 11 20. Find the smallest number to be added to the denominator of to get a proper fraction (1) 6 (2) 7 (3) 8 (4) 9

Solution

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20. (3) Let the smallest number be x.
11
Therefore, is proper fraction.
4 + x
4+ x> 11
* > 11 - 4 = 7
x > 7
x = 8
[: x should be minimum]