NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 8: Rational Numbers - Problems and Solutions

Question 86

Find the reciprocal of the following:

(i) \((\dfrac{1}{2} \times \dfrac{1}{4}) + (\dfrac{1}{2} \times 6)\)

(ii) \(\dfrac{20}{51} \times \dfrac{4}{91}\)

(iii) \(\dfrac{3}{13} \div \dfrac{-4}{65}\)

(iv) \((-5 \times \dfrac{12}{15}) - (-3 \times \dfrac{2}{9})\)