Arrange 6 12 , 5 12 , 2 3 , 3 8 in ascending order.

Given, 6 12 , 5 12 , 2 3 , 3 8 As we can see that denominators of all fractions are different First we find the L.C.M. of the denominators of the fractions to make the denominators same. L.C.M of 12 , 12 , 3 and 8 is 24 Now, = 6 × 2 12 × 2 , 5 × 2 12 × 2 , 2 × 8 3 × 8 , 3 × 3 8 × 3 = 12 24 , 10 24 , 16 24 , 9 24 Comparing numerators, we find that 9 24 < 10 24 < 12 24 < 16 24 Thus, the ascending order of given fraction is 3 8 < 5 12 < 6 12 < 2 3

Arrange 3 7 , 9 35 , 11 14 , 13 28 in descending order.

Given, 3 7 , 9 35 , 11 14 , 13 28 As we can see that denominators of all fractions are different First we find the L.C.M. of the denominators of the fractions to make the denominators same. L.C.M of 7 , 35 , 14 and 28 is 140 Now, = 3 × 20 7 × 20 , 9 × 4 35 × 4 , 11 × 10 14 × 10 , 13 × 5 28 × 5 = 60 140 , 36 140 , 110 140 , 65 140 Comparing numerators, we find that 110 140 > 65 140 > 60 140 > 36 140 Thus, the ascending order of given fraction is 11 14 > 13 28 > 3 7 > 9 35

By what number should be 4 5 6 multiplied to get 9 1 6 ?

Let the number be x . So, x × 4 5 6 = 9 1 6 ⇒ x × 29 6 = 55 6 ⇒ x = 55 6 ÷ 29 6 ⇒ x = 55 6 × 6 29 ⇒ x = 55 29 = 1 26 29 Thus, the number is 1 26 29

If the cost of a notebook is ₹ 12 3 4 , how many notebooks can be purchased for ₹ 191 1 4 ?

Given, Cost of one notebook is ₹ 12 3 4 Number of books can be purchased for ₹ 191 1 4 is = Price to purchase number of books ÷ cost of one book. 191 1 4 ÷ 12 3 4 = 765 4 ÷ 51 4 = 765 4 × 4 51 = 15 Number of books can be purchase is 15

By what fraction should 5 3 7 be divided to get 4 7 ?

Let the fraction be x . So, 5 3 7 ÷ x = 4 7 ⇒ 5 3 7 ÷ 4 7 = x ⇒ 38 7 × 7 4 = x ⇒ 19 2 = 9 1 2 = x Thus, the fraction is 9 1 2

E M B I B E

START UP MATHEMATICS>Chapter 2 - Fractions>REVIEW EXERCISES

REVIEW EXERCISES

Author:Rahul Sofat

Rahul Sofat Mathematics Solutions for Exercise - REVIEW EXERCISES

Simple step-by-step solutions to REVIEW EXERCISES questions of Fractions from START UP MATHEMATICS. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from REVIEW EXERCISES with Hints & Solutions

MEDIUM

7th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 2 - Fractions>REVIEW EXERCISES>Q 1

Simplify:

$7 \frac{5}{6} - 4 \frac{3}{8} + 2 \frac{7}{12}$

MEDIUM

7th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 2 - Fractions>REVIEW EXERCISES>Q 2

Arrange $\frac{6}{12}, \frac{5}{12}, \frac{2}{3}, \frac{3}{8}$ in ascending order.

MEDIUM

7th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 2 - Fractions>REVIEW EXERCISES>Q 3

Arrange $\frac{3}{7}, \frac{9}{35}, \frac{11}{14}, \frac{13}{28}$ in descending order.

MEDIUM

7th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 2 - Fractions>REVIEW EXERCISES>Q 7

By what number should be $4 \frac{5}{6}$ multiplied to get $9 \frac{1}{6} ?$

MEDIUM

7th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 2 - Fractions>REVIEW EXERCISES>Q 4

Simplify:

$(4 \frac{3}{7} \div 3 \frac{1}{2}) \div 1 \frac{1}{2}$

MEDIUM

7th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 2 - Fractions>REVIEW EXERCISES>Q 5

Mr Srinivasan spends $\frac{4}{7}$ of his income on household expenses, $\frac{1}{7}$ of his income on conveyance and $₹ 2000$ per months on insurance. If his monthly income is $₹ 42000$ . Find his annual savings