(ii) \(\frac{1}{5} ,\frac{3}{7}, \frac{7}{10} \)

Answer :

(i)\( \frac{2}{9}, \frac{2}{3}, \frac{8}{21} \)

LCM of 9, 3 ,21 = 63 then

$$ \frac{2}{9}=\frac{2×7}{9×7}=\frac{14}{63} $$
$$ \frac{2}{3}=\frac{2×21}{3×21}=\frac{42}{63} $$
$$ \frac{8}{21}=\frac{8×3}{21×3}=\frac{24}{63} $$
Hence \(\frac{42}{63} > \frac{24}{63} > \frac{14}{63} \)

\(\frac{2}{3} > \frac{8}{21} > \frac{2}{9} \)

(ii) \(\frac{1}{5} ,\frac{3}{7}, \frac{7}{10} \)

LCM of 5,7,10 = 70 then

$$ \frac{1}{5}=\frac{1×14}{5×14}=\frac{14}{70} $$
$$ \frac{3}{7}=\frac{3×10}{7×10}=\frac{21}{70} $$
$$ \frac{7}{10}=\frac{7×7}{10×7}=\frac{49}{70} $$
Hence \(\frac{49}{70} > \frac{21}{70} > \frac{14}{70} \)

\(\frac{7}{10} > \frac{3}{7} > \frac{1}{5} \)

- Q.1 Solve i) \( 2 - \frac{3}{5} \) ii) \(4 + \frac{7}{8} \) iii) \( \frac{3}{5}+\frac{2}{7} \) iv) \( \frac{9}{11}-\frac{4}{15} \) v) \(\frac{7}{10}+\frac{2}{5}+\frac{3}{2} \) vi) \(2\frac{2}{3}+3\frac{1}{2} \) vii) \(8\frac{1}{2}-3\frac{5}{8} \)
- Q.3 In a “magic square” the sum of number in each row, in each column and along the diagonals is the same. Is this a magic square?
- Q.4 A rectangular sheet of paper is \(12\frac{1}{2} \) cm long and \(10\frac{2}{3} \)cm wide. Find its perimeter.
- Q.5 Find the perimeter of (i) triangle ABE (ii) the rectangle BCDE in this figure. Whose perimeter is greater?
- Q.6 Salil wants to put a picture in a frame. The picture is \(7\frac{3}{5} \)cm wide. To fit in the frame, the picture cannot be more than \(7\frac{3}{10} \) cm wide. How much should the picture be trimmed?
- Q.7 Ritu ate =\(\frac{3}{5} \)part of an apple and the remaining apple was eaten by her brother Somu. How much part of the apple did Somu eat? Who had the larger share? By how much?
- Q.8 Michael finished colouring a picture in 7/12 hour. Vaibhav finished colouring the same picture in 3/4 hour. Who worked longer? By what fraction was it longer?

- NCERT solutions for class 7 maths chapter 1 Integers
- NCERT solutions for class 7 maths chapter 2 Fractions and Decimals
- NCERT solutions for class 7 maths chapter 3 Data Handling
- NCERT solutions for class 7 maths chapter 4 Simple Equations
- NCERT solutions for class 7 maths chapter 5 Lines and Angles
- NCERT solutions for class 7 maths chapter 6 The Triangle and its Properties
- NCERT solutions for class 7 maths chapter 7 Congruence of Triangles
- NCERT solutions for class 7 maths chapter 8 Comparing Quantities
- NCERT solutions for class 7 maths chapter 9 Rational Numbers
- NCERT solutions for class 7 maths chapter 10 Practical Geometry
- NCERT solutions for class 7 maths chapter 11 Perimeter and Area
- NCERT solutions for class 7 maths chapter 12 Algebraic Expressions
- NCERT solutions for class 7 maths chapter 13 Exponents and Powers
- NCERT solutions for class 7 maths chapter 14 Symmetry
- NCERT solutions for class 7 maths chapter 15 Visualising Solid Shapes

- NCERT solutions for class 7 science chapter 1 Nutrition in Plants
- NCERT solutions for class 7 science chapter 2 Nutrition In Animals
- NCERT solutions for class 7 science chapter 3 Fibre to Fabric
- NCERT solutions for class 7 science chapter 4 Heat
- NCERT solutions for class 7 science chapter 5 Acids Bases and Salts
- NCERT solutions for class 7 science chapter 6 Physical and Chemical Changes
- NCERT solutions for class 7 science chapter 7 Weather, Climate and Adaptations of Animals to Climate
- NCERT solutions for class 7 science chapter 8 Winds, Storms and Cyclones
- NCERT solutions for class 7 science chapter 9 soil
- NCERT solutions for class 7 science chapter 10 Respiration in Organisms
- NCERT solutions for class 7 science chapter 11 Transportation in Animals and Plants
- NCERT solutions for class 7 science chapter 12 Reproduction In Plant
- NCERT solutions for class 7 science chapter 13 Motion and Time
- NCERT solutions for class 7 science chapter 14 Electric Current and Its Effects
- NCERT solutions for class 7 science chapter 15 Light
- NCERT solutions for class 7 science chapter 16 Water: A Precious Resource
- NCERT solutions for class 7 science chapter 17 Forests: Our Lifeline
- NCERT solutions for class 7 science chapter 18 Waste Water Story