Question

3 over 7 - 4 over 21

Answer 1

0.23809523809

There is not much that can be done to figure out how to write 0.23809523809 as a fraction, except to literally use what the decimal portion of your number, the .23809523809, means.

Since there are 11 digits in 23809523809, the very last digit is the "100000000000th" decimal place.

So we can just say that .23809523809 is the same as 23809523809/100000000000.

We can reduce this fraction to lowest

terms by dividing both the numerator and denominator by -2.14748e+09.

Why divide by -2.14748e+09? -2.14748e+09 is the Greatest Common Divisor (GCD)

or Greatest Common Factor (GCF) of the numbers 2.38095e+10 and 1e+11.

So, this fraction reduced to lowest terms is

`(-11)/(-46)`

Hope this helps!

Answer 2

Greetings!

Answer:

0

Explanation:

If the equation is as follows:

`(3)/(7) - (4)/(21)`

We simply need to make the denominator the same for both, now as 7 is a factor of 21 ( 21 ÷ 7 = 3) we simply need to multiply
`(3)/(7)` by 3:

`(3)/(7)` =
`(4)/(21)`

Now we can minus the two:

`(9)/(21)` -
`(4)/(21)`

9 - 4 = 5, so the answer is
`(5)/(21)`

Hope this helps!