Students can Download Chapter 2 Fractions and Decimals Ex 2.3, Question and Answers, Notes Pdf, KSEEB Solutions for Class 7 Maths, Karnataka State Board Solutions help you to revise complete Syllabus and score more marks in your examinations.
Karnataka State Syllabus Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.3
Question 1.
Find :
Solution:
ii)
Question 2.
Multiply and reduce to lowest form (if possible)
i)
Solution:
ii)
Solution:
iii)
Solution:
iv)
Solution:
v)
Solution:
vi)
Solution:
vii)
Solution:
Question 3.
Multiply the following fractions:
i)
Solution:
ii)
Solution:
iii)
Solution:
iv)
Solution:
v)
Solution:
vi)
Solution:
vii)
Solution:
Question 4.
Which is greater :
i)
Solution:
Now,
we have to find greater of
To compare fractions, we make denominator equal.
ii)
Solution:
Now,
we have to find greater of \(\frac{3}{7}\) & \(\frac{2}{7}\)
Since denominator is same, number with greater numerator is greater.i.e., \(\frac{3}{7}>\frac{2}{7}\)
∴ Thus \(\frac{1}{2}\) of \(\frac{6}{7}\) is greater
Question 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.
Solution:
Saili plants 4 saplings, in a row.
The distance between each sapling = \(\frac{3}{4}\) m
Question 6.
Lipika reads a book for \(1 \frac{3}{4}\) everyday. She reads the entire book in 6 days. How many hours in all were required by her to read the book ?
Solution:
Number of hours read everyday = \(1 \frac{3}{4}\) hours
Number of days to read whole book = 6 days
Therefore,
Question 7.
A car runs 16 km using 1 litre of petrol. How much distance will it cover using \(2 \frac{3}{4}\) litres of petrol.
Solution:
Distance of car runs in 1 litre = 16km
∴ Car will run 44 km in \(2 \frac{3}{4}\) litre of petrol.
Question 8.
a) i) Provide the number in the box □, such that \(\frac{2}{3} \times \square=\frac{10}{30}\)
Solution:
ii) The simplest form of the number obtained in □ is ___
Solution:
b) i) Provide the number in the box □, such that \(\frac{3}{5} \times \square=\frac{24}{75}\)
Solution:
b) ii) The simplest form of the number obtained in □ is ___.
Solution:
it cannot be simplified further