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Question

Give the proper fraction:

Whose numerator and denominator add up to 10. how many fraction of this kind can you make?


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Solution

According to the question we have to find out the possible fractions whose numerator and denominator when added up will sum upto 10

Since we have 9 digits so 9 possible combination can be there.

The 9 distinct digits are: 1,2,3,4,5,6,7,8,9.

The pairs for sum of 10 can be (1,9),(2,8),(3,7),(4,6),(5,5),(6,4),(7,3),(8,2),(9,1).

Therefore these pairs can form fraction to satisfy the condition given in the question.

Hence the9 fractions are:

19,28,37,46,55,64738291

Hence, the required fraction are 19,28,37,46,55,64738291

Hence, there are 9 such fraction.


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