Which of the following rational numbers is postive?

1

(a)

\(\frac { -8 }{ 7 } \)

(b)

\(\frac { 19 }{ -13 } \)

(c)

\(\frac { -3 }{ -4 } \)

(d)

\(\frac { -21 }{ 13 } \)

-3 can be written in the form of \(\frac { p }{ q } \) as

1

(a)

\(\frac { -3 }{ -1 } \)

(b)

\(\frac { -3 }{ 0 } \)

(c)

\(\frac { 0 }{ -3 } \)

(d)

\(\frac { -3 }{ 1 } \)

The subtraction \(6\frac { 4 }{ 5 } \)from \(\frac { 50 }{ 5 } \)

1

(a)

\(3\frac { 1 }{ 5 } \)

(b)

\(2\frac { 1 }{ 5 } \)

(c)

\(\frac { 31 }{ 95 } \)

(d)

\(\frac { 39 }{ 95 } \)

Which of the following is the standard form \(\frac{36}{-24}\)is

1

(a)

\(\frac{-3}{2}\)

(b)

\(\frac{3}{2}\)

(c)

\(\frac{2}{3}\)

(d)

\(\frac{2}{-3}\)

How many rational numbers are there between 2 and 4?

1

(a)

Zero

(b)

one

(c)

two

(d)

uncountable

Which of the following is equivalent to \(\frac{4}{5}\)?

1

(a)

\(\frac{5}{4}\)

(b)

\(\frac{16}{25}\)

(c)

\(\frac{16}{20}\)

(d)

\(\frac{15}{25}\)

rational number \(\frac{p}{q}\)is said to be in its simplest form, when

1

(a)

'p' is a prime number.

(b)

'q' is a prime number.

(c)

'p' and 'q' both are prime to each other.

(d)

all of the above.

The denominator of the rational number \(\frac{4}{7}\) is

1

(a)

7

(b)

4

(c)

3

(d)

11

The denominator of the rational number \(\frac{-6}{-5}\) is

1

(a)

6

(b)

-6

(c)

5

(d)

-5

The denominator of the rational number - 9 is

1

(a)

-9

(b)

9

(c)

-1

(d)

1

Additive inverse of \(\frac { 2 }{ 3 } \) is__________

1

(a)

\(-\frac { 2 }{ 3 } \)

\(\frac { -5 }{ 6 } +\frac { -1 }{ 6 }\)=_________

1

(a)

-1

\(\frac { -5 }{ 3 } \times \left( \frac { -3 }{ 5 } \right) =\) __________

1

(a)

1

\(\frac{-1}{2}\) is__________than \(\frac{1}{5}\)

1

(a)

less

\(\frac{-16}{24}\)and\(\frac{20}{-16}\)  represent____________ rational numbers.

1

(a)

different

If product of two rational numbers is \(\frac{-8}{9}\) and one of the number is\(\frac{-10}{3}\)  find the other.

2

(a)

Let other number be x
\(x\times \left( \frac { -10 }{ 3 } \right) =\frac { -8 }{ 9 } \)
\(x={8\times3\over10\times9}\)
=\(\frac{4\times1}{5\times3}=\frac{4}{15}\)

What is the standard form of \(\frac{105}{-185}\)?

2

(a)

-\(\frac{21}{37}\)

Write the following rational numbers in their standard form:
\(\frac{36}{-24}\)

2

(a)

\(\frac{-3}{2}\)

Write three rational numbers between \(-\frac{1}{2}\) and \(\frac{1}{2}\).

2

(a)

\(-\frac{1}{4}\),0,\(\frac{1}{4}\)

'a' and 'b' are two different numbers taken from the numbers 1-50. What is the largest value that \(\frac{a-b}{a+b}\) can have? What is the largest value that \(\frac{a+b}{a-b}\) can have? 

2

(a)

Draw the number line and represent the following rational numbers on it .
\(\frac { 3 }{ 4 } \)

5

(a)

Write four more rational numbers in each of the following patterns:
\(\\ \frac { -1 }{ 6 } ,\frac { 2 }{ -12 } ,\frac { 3 }{ 18 } ,\frac { 4 }{ -24 } ,....\)

5

(a)

Arrange the rational numbers \(\frac{-2}{5},\frac{9}{-10}\) and \(\frac{-5}{6}\).

5

(a)

Taking x \(=\frac { -4 }{ 9 } \),y\(=\frac { 5 }{ 12 } \)and z\(=\frac { 7 }{ 18 } \), Find
The rational number, which when added to x gives y.

5

(a)

Find \(\frac{-4}{7}\times3,\)using both ways. What do you observe?

5

(a)