Question

answee the following question​

Answer 1

Answer:

option a is correct

Mark as Branliest and follow me

Answer 2

c. Standard form of rational number $\frac{63}{-140}$ is $\frac{-9}{20}$

Step-by-step explanation:

Rational number:  A rational number is a type of real numbers, which is in the form of p/q where q is not equal to zero.

Standard form of rational number:-

A rational number is said to be in standard form if the common factor between numerator and denominator is only 1 and the denominator is always positive.

Here 63 and 140 both are divisible by 7

$\frac{63/7}{-140/7}$    =   $\frac{-9}{20}$

9 and 20 both doesn't have any common factor so $\frac{-9}{20}$ this is the standard form.