NCERT Class 7 Mathematics

(Ron) #1
FRACTIONS AND DECIMALS 29

2.1 INTRODUCTION


You have learnt fractions and decimals in earlier classes. The study of fractions included
proper, improper and mixed fractions as well as their addition and subtraction. We also
studied comparison of fractions, equivalent fractions, representation of fractions on the
number line and ordering of fractions.
Our study of decimals included, their comparison, their representation on the number
line and their addition and subtraction.
We shall now learn multiplication and division of fractions as well as of decimals.


2.2 HOW WELL HAVE YOU LEARNT ABOUT FRACTIONS?


Aproper fraction is a fraction that represents a part of a whole. Is^7
4
a proper fraction?


Which is bigger, the numerator or the denominator?


Animproper fraction is a combination of whole and a proper fraction. Is^74 an

improper fraction? Which is bigger here, the numerator or the denominator?


The improper fraction
7
4 can be written as
13
4


. This is a mixed fraction.


Can you write five examples each of proper, improper and mixed fractions?


EXAMPLE 1 Write five equivalent fractions of^3
5


SOLUTION One of the equivalent fractions of^3
5


is
332 6
55210




. Find the other four.


Chapter 2 Fractions and Decimals

Free download pdf