Question

standard form of 42/-10​

Answer 1

-21/5

Step-by-step explanation:

The standard form of a rational number has two conditions

       1.The denominator of the fraction should be a positive number

        2.It should not be divided further by a common number

So, for the current fraction

42/-10

Multiply and divide both number by -1 and divide by 2. It becomes

-21/5

Thus, the standard form of 40/-10 is -21/5

Learn more about standard form of rational number from the link below

https://brainly.in/question/129335

Answer 2

42/-10​ = -21/5 where p = -21 and q = 5

Step-by-step explanation:

A rational number is a number that can be expressed as the ratio of two integers or as a fraction in the form of p/q. The decimal number should be a positive number. The rational number in the form of a fraction should be an irreducible fraction.

Applying the above rules, let's convert 42/-10​ to a rational number p/q.

To remove the decimal in the denominator, we can carry it to the numerator without any change in its value.

So 42/-10 = -42/10

Now let's make it irreducible fraction by eliminating any common factors between the numerator and denominator.

  -42/10 = -21/5.

It can't be reduced any further.

So 42/-10​ = -21/5 where p = -21 and q = 5