Multiply 7 143 × 187 119 × 39 19 .

Given, 7 143 × 187 119 × 39 19 → To multiply first check whether anything is getting cancelled. → And then multiply the left over numerators of the fraction and denominators of the fractions. = 7 1 143 13 × 187 11 119 17 × 39 19 = 39 3 13 1 × 19 = 3 19 Hence, the required answer is 3 19 .

Find five rational numbers between - 2 7 and 3 5 .

Given, - 2 7 and 3 5 LCM of 7 and 5 is 35 . Hence, we can write given fractions as: - 2 × 5 7 × 5 = - 10 35 and 3 × 7 5 × 7 = 21 35 Now, we can find five rational numbers between - 10 35 and 21 35 . The rational numbers can be - 9 35 , - 8 35 , - 7 35 , - 6 35 , - 5 35 , - 4 35 . . . 20 35 .

Arrange in ascending order of magnitude 3 7 , 0 , - 2 3 , 7 11 , - 3 7 , - 5 6 .

Given, 3 7 , 0 , - 2 3 , 7 11 , - 3 7 , - 5 6 . Ascending order means to arrange numbers in increasing order, that is, from smallest to largest. To arrange them first convert them into like fractions by taking the LCM of the denominators. LCM of 7 , 3 , 11 , 7 , 6 is 462 . Now the numbers can be written as 3 × 66 7 × 66 = 198 462 , - 2 × 154 3 × 154 = - 308 462 , 7 × 42 11 × 42 = 294 462 - 3 × 66 7 × 66 = - 198 462 , - 5 × 77 6 × 77 = - 385 462 Negative number with the greatest absolute value is smallest. Hence, the numbers in increasing order can be written as; - 385 462 , - 308 462 , - 198 462 , 0 , 198 462 , 294 462 Further it can be written in increasing order in the following way. - 5 6 , - 2 3 , - 3 7 , 0 , 3 7 , 7 11 .

E M B I B E

MATHEMATICS A TEXTBOOK FOR CLASS 8>Chapter 1 - Rational Numbers>MISCELLANEOUS EXERCISE

Jammu and Kashmir Board Solutions for Chapter: Rational Numbers, Exercise 11: MISCELLANEOUS EXERCISE

Author:Jammu and Kashmir Board

Jammu and Kashmir Board Mathematics Solutions for Exercise - Jammu and Kashmir Board Solutions for Chapter: Rational Numbers, Exercise 11: MISCELLANEOUS EXERCISE

Attempt the free practice questions on Chapter 1: Rational Numbers, Exercise 11: MISCELLANEOUS EXERCISE with hints and solutions to strengthen your understanding. MATHEMATICS A TEXTBOOK FOR CLASS 8 solutions are prepared by Experienced Embibe Experts.