Question

Which of the following rational numbers is in standard form: [1] (a) −18 26 (b) −56 91 (c) −27 64 (d) 28 −105

Answer 1

Answer:

yes option d is answet

Step-by-step explanation:

because 28/105 is not further divisible

Answer 2

Answer:

The final answer is b and c.

Step-by-step explanation:

We need to find the numbers which are in standard form. But before we do that we need to understand what a rational number in it's standard form is.

A rational number is in it's standard form if the denominator does not carry a negative sign and there is only one common factor between the numerator and denominator which is exactly one.

a) - 18 / 26 : - Satisfies the first rule however there is still a common factor other than 1.

b) -56 / 91 : - Satisfies the first rule and has no common factors other than 1, It is in standard form.

c) -27 / 64 : - Satisfies the first rule and has no common factors other than 1, It is in standard form.

d) 28 / -105 : - Does not satisfy the first rule.

Only b and c are in standard form.

What is a Rational number

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