NCERT Solutions For Class 7 Maths Chapter 2 Fractions And Decimals Exercise 2.3

Table of Contents

Class 7, Maths, Chapter 2, Exercise 2.3 Solutions

Q.1. Find:

(i) $\frac{1}{4}\,\,\,\,of\,\,\,\,\,\,\,\,\,\,\,\,(a)\,\,\,\frac{1}{4}\,\,\,\,\,\,\,\,\,\,\,(b)\,\,\frac{3}{5}\,\,\,\,\,\,\,\,\,\,(c)\,\,\frac{4}{3}$

(ii) $\frac{1}{7}\,\,\,\,of\,\,\,\,\,\,\,\,\,\,\,\,(a)\,\,\,\frac{2}{9}\,\,\,\,\,\,\,\,\,\,\,(b)\,\,\frac{6}{5}\,\,\,\,\,\,\,\,\,\,(c)\,\,\frac{3}{10}$

Q.2. Multiply and reduce to lowest form (if possible) :

$(i)\,\,\frac{2}{3}\times 2\frac{2}{3}$

$(ii)\,\,\frac{2}{7}\times \frac{7}{9}$

$(iii)\,\,\frac{3}{8}\times \frac{6}{4}$

$(iv)\,\,\frac{9}{5}\times \frac{3}{5}$

$(v)\,\,\frac{1}{3}\times \frac{15}{8}$

$(vi)\,\,\frac{11}{2}\times \frac{3}{10}$

$(vii)\,\,\frac{4}{5}\times \frac{12}{7}$

Q.3. Multiply the following fractions:

$(i)\,\,\frac{2}{5}\times 5\frac{1}{4}$

$(ii)\,\,6\frac{2}{5}\times \frac{7}{9}$

$(iii)\,\,\frac{3}{2}\times 5\frac{1}{3}$

$(iv)\,\,\frac{5}{6}\times 2\frac{3}{7}$

$(v)\,\,3\,\,\frac{2}{5}\times \frac{4}{7}$

$(vi)\,2\,\frac{3}{5}\times 3$

$(vii)\,\,3\,\,\frac{4}{7}\times \frac{3}{5}$

Q.4. Which is greater:

$(i)\,\,\frac{2}{7}\,\,of\,\,\frac{3}{4}\,\,\,\,\,or\,\,\,\,\,\,\frac{3}{5}\,\,of\,\,\frac{5}{8}$

$(ii)\,\,\frac{1}{2}\,\,of\,\,\frac{6}{7}\,\,\,\,\,or\,\,\,\,\,\,\frac{2}{3}\,\,of\,\,\frac{3}{7}$

Q.5. Saili plants 4 saplings, in a row, in her garden. The distance between two adjacent saplings is $\frac{3}{4}$ m. Find the distance between the first and the last sapling.

Q.6. Lipika reads a book for $1\frac{3}{4}$ hours everyday. She reads the entire book in 6 days. How many hours in all were required by her to read the book?