Fractions and Decimals Class 7 Ex. 2.2;
New Ncert Solution for Class 7 Maths Chapter 2 Fractions and Decimals Free Solution;
Exercise 2.2
Question 1. Find :
Solution 1 :-
(i)
(ii)
Question 2 :- Multiply, and reduce to lowest-form; (if possible):
Solution 2 :-
Question 3 :- Multiply the following fractions:
Solution 3 :-
Question 4 :- Which is greater:
Solution 4 :- (i)
(ii)
Question 5 :- Saili plants, 4-saplings, in a row, in her garden. The distance between two adjacent saplings is 3/4 m. Find the distance, between the first and the last sapling.
Solution 5:-
Number of saplings in a row = 4
Distance between two adjacent saplings = 3/4 m
Distance between the first and the last sapling = 3 x (3/4) = 9/4 = 2(1/4) m.
Question 6 :- Lipika, reads a book for 1(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?
Solution 6 :-
In 1 day, Lipika reads = 1(3/4) hours
Since in 6 days, Lipika will need = 6×1(3/4) = 6x(7/4) = 3x(7/2) = 21/2 hours;
So, the required hours = 10(1/2) hours.
Question 7 :- A car runs, 16-km using 1-litre of petrol. How-much distance will it cover using 2(3/4) litres of petrol?
Solution 7:-
In 1 litre of petrol, the car covers distance = 16 km.
In 2(3/4) litres of petrol, the car will cover distance = 2(3/4) × 16 = (11/4)x16;
So, the required distance = 44 km.
Question 8.
Solution 8:-
Chapter-2, Fractions and Decimals Class-7 Exercise-2.2 for Free