NCERT Solutions For Class 6 Maths Chapter 7 Exercise 7.5
Ncert Solutions for Class 6 Maths Chapter 7 Fractions Exercise 7.5:-
Exercise 7.5 Class 6 maths NCERT solutions Chapter 7 Fractions pdf download:-
Ncert Solution for Class 6 Maths Chapter 7 Fractions Exercise 7.5 Tips:-
Addition and Subtraction of Fractions
So far in our study we have learnt about natural numbers, whole numbers and
then integers. In the present chapter, we are learning about fractions, a different
type of numbers.
Whenever we come across new type of numbers, we want to know how to
operate with them. Can we combine and add them? If so, how? Can we take
away some number from another? i.e., can we subtract one from the other?
and so on. Which of the properties learnt earlier about the numbers hold now?
Which are the new properties? We also see how these help us deal with our
daily life situations.
Try These:-
1. My mother divided an apple into 4 equal
parts. She gave me two parts and my
brother one part. How much apple did she
give to both of us together?
2. Mother asked Neelu and her brother to
pick stones from the wheat. Neelu picked
one fourth of the total stones in it and her
brother also picked up one fourth of the
stones. What fraction of the stones did both
pick up together?
3. Sohan was putting covers on his note books.
He put one fourth of the covers on Monday.
He put another one fourth on Tuesday and
the remaining on Wednesday. What fraction
of the covers did he put on Wednesday?
Look at the following
example. A tea stall owner
consumes in her shop 2 1
2
litres of milk in the morning
and 1
1
2 litres of milk in the
evening. What is the total
amount of milk she uses in
the stall?
Or Shekhar ate 2 chapatis
for lunch and 1
1
2 chapatis for
dinner. What is the total
number of chapatis he ate?
Clearly, both the situations
require the fractions to be added. Some of these additions can be done orally
and the sum can be found quite easily.
Adding or subtracting like fractions
All fractions cannot be added orally. We need to know how they can be added
in different situations and learn the procedure for it. We begin by looking at
addition of like fractions.
Take a 7 × 4 grid sheet (Fig 7.13). The sheet has
seven boxes in each row and four boxes in each
column.
How many boxes are there in total?
Colour five of its boxes in green.
What fraction of the whole is the green region?
Now colour another four of its boxes in yellow.
What fraction of the whole is this yellow region?
What fraction of the whole is coloured altogether?
Try These
1. Find the difference between 7
2. Mother made a gud patti in a round shape. She divided it into 5 parts. Seema
ate one piece from it. If I eat another piece then how much would be left?
3. My elder sister divided the watermelon into 16 parts. I ate 7 out them.
My friend ate 4. How much did we eat between us? How much more
of the watermelon did I eat than my friend? What portion of the
watermelon remained?
4. Make five problems of this type and solve them with your friends.
.gif)