Mathematics
Grade-7
Easy

Question

From the following identify equivalent rational numbers.

  1. 24 over 40 text  and  end text 35 over 50
  2. fraction numerator negative 25 over denominator 35 end fraction text  and  end text fraction numerator 55 over denominator negative 77 end fraction
  3. fraction numerator negative 8 over denominator 15 end fraction text  and  end text fraction numerator negative 24 over denominator 48 end fraction
  4. 9 over 72 text  and  end text fraction numerator negative 3 over denominator 21 end fraction

hintHint:

Equivalent fractions are those fractions which can be reduced or simplified to the same simpler fraction.

The correct answer is: fraction numerator negative 25 over denominator 35 end fraction text  and  end text fraction numerator 55 over denominator negative 77 end fraction


    The correct answer is option b, fraction numerator negative 25 over denominator 35 end fraction text  and  end text fraction numerator 55 over denominator negative 77 end fraction.
    Factorizing out 5 from fraction numerator negative 25 over denominator 35 end fraction, we get: fraction numerator negative 25 over denominator 35 end fraction equals fraction numerator negative 5 over denominator 7 end fraction
    Similarly, factorizing out 11 from fraction numerator 55 over denominator negative 77 end fraction, we get: fraction numerator 55 over denominator negative 77 end fraction equals fraction numerator negative 5 over denominator 7 end fraction
    Hence, the correct answer is option b.

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