Mathematics
Grade-7
Easy

Question

The standard form of fraction numerator 55 over denominator negative 99 end fraction is _________.

  1. 5 over 9
  2. fraction numerator negative 5 over denominator 9 end fraction
  3. fraction numerator negative 55 over denominator 99 end fraction
  4. fraction numerator negative 99 over denominator 55 end fraction

hintHint:

A rational number is in standard form when there are no common factors from the numerator and the denominator.

The correct answer is: fraction numerator negative 5 over denominator 9 end fraction


    We are asked to find the standard form of  fraction numerator 55 over denominator negative 99 end fraction. In the given fraction 11 is a common factor. Factoring out 11, we get:
    fraction numerator 55 over denominator negative 99 end fraction equals fraction numerator 5 over denominator negative 9 end fraction.
    Writing the negative sign on the numerator, we have:fraction numerator negative 5 over denominator 9 end fraction
    Thus, the correct answer is option b.

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