NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 8: Rational Numbers - Fill in the BlanksQuestion 41
Class 7 - Mathematics - Unit 8: Rational Numbers - Fill in the Blanks
Question. 41
_____ \(\times ( -\dfrac{2}{5} ) = 1\)
Answer:
-\dfrac{5}{2} \(\times ( -\dfrac{2}{5} ) = 1\)
Detailed Answer with Explanation:
To get 1, multiply by reciprocal: reciprocal of \(-\dfrac{2}{5}\) is \(-\dfrac{5}{2}\).