Which of the following rational numbers is in standard form ?

a) -18/26 b)-56/91 c)-27/64d) 28/-105

Pls provide solution URGENTLY.

a) -18/26 = -9/13 (standard form)

b) -56/91 = -8/13 (standard form)

c) -27/64 (standard form)

d) 28/-105 = -4/15 (standard form)

The correct answer is C.

  • -1

I can't give answer but give you hint.

A rational number is said to be in the standard form if its denominator is a positive integer and the numerator and the denominator have no common factor other than 1 .

If a rational number is not in the standard form , then it can be reduced to the standard form .

Read more: http://wiki.answers.com/Q/What_is_the_standard_form_of_a_rational_number#ixzz275tshmWw

  • 1

all except 28/-105 as its denominator is negative. to change it into the stadard form, shift the minus sign up i.e. put that sign for the numerator + reduce all of them to the lowest term.

  • -1
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