Question

which of the following pair of rational number represent same number -18 /45 ,16/-40​

Answer 1

MATHS
MEDIUM
Which of the rational number is greater in the given pair?
(i)
3
−4
​
or
7
−8
​

(ii)
−9
7
​
or
8
−5
​

(iii)
3
−1
​
or
−5
4
​

(iv)
−13
9
​
or
−12
7
​

(v)
−5
4
​
or
10
−7
​

(vi)
5
−12
​
or

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Answer 2

Answer:

-2/5

Step-by-step explanation:

18 and 45 HCF is 9

Therefore:

$\frac{-18}{45}$ ÷ $\frac{9}{9}$ = $\frac{-2}{5}$

HCF of 16 and 40 is 8

Therefore:

$\frac{16}{-40}$ ÷$\frac{8}{8}$ = $\frac{2}{-5}$

$\frac{-2}{5} = \frac{2}{-5}$

Therefore answer is $\frac{-2}{5}$