NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 8: Rational Numbers - Problems and SolutionsQuestion 80
Class 7 - Mathematics - Unit 8: Rational Numbers - Problems and Solutions
Question. 80
Find the product of:
(i) \(\dfrac{-4}{5} \times \dfrac{-5}{12}\)
(ii) \(\dfrac{-22}{11} \times \dfrac{-21}{11}\)
Answer:
(i) \(\dfrac{1}{3}\)
(ii) \(\dfrac{42}{11}\)
Detailed Answer with Explanation:
(i) Multiply numerators and denominators: 20/60=1/3. (ii) (-22×-21)/(11×11)=462/121=42/11.