Q8 of 47 Page 172

Write the following in decreasing order:

Now for arranging rational numbers in increasing or decreasing order make the denominator of numbers equal. But as we can see from the numbers that would make the whole process very long.


We can divide the numbers and can calculate the approximate values.


21/17 = 1.235


31/27 = 1.148


13/11 = 1.18


41/37 = 1.10


51/47 = 1.08


9/8 = 1.125


Now we can easily arrange the numbers as follows


21/17 > 13/11 > 31/27 > 9/8 > 41/37 > 51/47


More from this chapter

All 47 →
6

Find the multiplicative inverses of the following rational numbers.

 7

Write the following in increasing order:

 9

(a) What is the additive inverse of 0?

(b) What is the multiplicative inverse of 1?


(c) Which integers have multiplicative inverses?

 10

In the set of all rational numbers, give 2 examples each illustrating the following properties:

(i) associativity


(ii) commutativity


(iii) distributivity of multiplication over addition.