Write four rational numbers between −1 / 7 and 2 / 3
Answers
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Answer:
Four rational numbers between −1 / 7 and 2 / 3 are
Step-by-step explanation:
Here given two fractions are and
We want to find four rational number between given two rational numbers.
But question is what is rational number?
Any number that can be written as a fraction of two integers is called a rational number.
Here first we need to make denominator same of both fraction.
First we are taking the fraction
We are multiplying denominator and numerator by 3,
Then we are taking the fraction
We are multiplying denominator and numerator by 7,
Now, four rational numbers between
and are
This is a problem of Algebra.
Some important Algebra formulas.
(a + b)² = a² + 2ab + b²
(a − b)² = a² − 2ab − b²
(a + b)³ = a³ + 3a²b + 3ab² + b³
(a - b)³ = a³ - 3a²b + 3ab² - b³
a³ + b³ = (a + b)³ − 3ab(a + b)
a³ - b³ = (a -b)³ + 3ab(a - b)
a² − b² = (a + b)(a − b)
a² + b² = (a + b)² − 2ab
a² + b² = (a − b)² + 2ab
a³ − b³ = (a − b)(a² + ab + b²)
a³ + b³ = (a + b)(a² − ab + b²)
Know more about Algebra,
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2) https://brainly.in/question/1169549