NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 8: Rational Numbers - Problems and SolutionsQuestion 78
Class 7 - Mathematics - Unit 8: Rational Numbers - Problems and Solutions
Question. 78
Find the sum of:
(i) \(\dfrac{8}{13} + \dfrac{3}{11}\)
(ii) \(\dfrac{7}{3} + \dfrac{-4}{3}\)
Answer:
(i) \(\dfrac{127}{143}\)
(ii) 1
Detailed Answer with Explanation:
(i) LCM(13,11)=143 → (88+39)/143 =127/143. (ii) (7-4)/3 = 1.