Exercise 2.4
Question 1
Find :
(i)
Sol :
= 16
(ii)
Sol :
(iii)
Sol :
(iv)
Sol :
(v)
Sol :
(vi)
Sol :
Question 2
Find the reciprocal of each of the following fractions. Classify the reciprocals as proper fractions, improper fractions and whole numbers.
(i) (ii)
(iii)
(iv) (v)
(vi)
(vii)
Sol :
Note : A proper fraction is the fraction which has its denominator greater than its numerator while improper fraction is the fraction which has its numerator greater than its denominator. Whole numbers are a collection of all positive integers including 0.
(i)
Reciprocal
Therefore, it is an improper fraction.
(ii)
Reciprocal
Therefore, it is an improper fraction.
(iii)
Reciprocal
Therefore, it is an proper fraction.
(iv)
Reciprocal
Therefore, it is an proper fraction.
(v)
Reciprocal
Therefore, it is an proper fraction.
(vi)
Reciprocal
Therefore, it is a whole number.
(vii)
Reciprocal
Therefore, it is a whole number.
Question 3
Find :
(i) (ii)
(iii)
(iv)
(v)
(vi)
Sol :
(i)
(ii)
(iii)
(iv)
(v)
(vi)
Question 4
Find :
(i) (ii)
(iii) (iv)
(v) (vi)
(vii) (viii)
Sol :
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(viii)