NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 8: Rational Numbers - Problems and SolutionsQuestion 90
Class 7 - Mathematics - Unit 8: Rational Numbers - Problems and Solutions
Question. 90
Given \(\dfrac{p}{q}\) and \(\dfrac{r}{s}\) are rationals in standard form:
(a) \(\dfrac{p}{q} < \dfrac{r}{s}\), if \(p \times s < r \times q\)
(b) \(\dfrac{p}{q} = \dfrac{r}{s}\), if \(p \times s = r \times q\)
(c) \(\dfrac{p}{q} > \dfrac{r}{s}\), if \(p \times s > r \times q\)
Answer:
(a) \(\dfrac{p}{q} < \dfrac{r}{s}\)
(b) \(p \times s = r \times q\)
(c) \(\dfrac{p}{q} > \dfrac{r}{s}\)
Detailed Answer with Explanation:
Cross multiplication method of comparing rational numbers.