Questions
Question type
Use these controls to find questions to answer
If the denominators are the same just divide the numerators.
A fraction consists of
Using the allocated names we have:
Consider whole numbers. For example 6 and 3
These can, and may, be written as
Now consider
8
The lowest common multiple is the lowest number which is a multiple of both numbers.
Since 8 * 1 = 8 and 2 * 4 = 8, 8 is the lowest common multiple.
An easy way to find the LCM is to list all multiples of each number, up to the product of both numbers (in this case, 16).
For 2:
- 2, 4, 6, 8, 10, 12, 14, 16
For 8:
- 8, 16,
8 is the lowest number they both have in common.
The highest possible value of an LCM is both numbers multiplied by each other. This is why for both lists i stopped at 16, because
2*8 = 16
His average speed is
Remember the triangle of Speed, Distance and Time. If you remember it, you'll ace these kinda questions.
I had trouble with these formulas but the triangle helped me a LOT! Anyways, let's get back to the question. The formula for average speed is pretty much the same as the formula for just speed. The average speed formula is
So......
My source
I hope this explanation helps you!
When you write a fraction you are showing :
In order to do this the units have to be the same, so you can write
The fraction is :
Note:
the units are the same, so they will cancel.
The fraction does not have a unit, it merely indicates how the two quantities compare with each other.
'fraction' generally refers to a common fraction.
fractions should be given in the simplest form, Divide the numerator and denominator by the highest common factor
If
Observe that
Hence
Similarly as
Hence
Although above is an interesting way for such problems, the easiest is to convert every number to decimal form.
Hence numbers are
and ranges are
and as is seen
Additional Information
Observe that
The three integers are
There are two ways to solve this problem.
A] Since we are looking for three consecutive integers that add up to
It follows that the first and third integers will be that integer minus and plus one respectively.
Hence, the three integers are
B] The other way to solve this problem involves very basic algebra (even though this question is in Prealgebra), in which we represent the first integer as
Since we know the sum of these three integers is
Adding the
Subtract
Divide each side by
Hence the three consecutive integers are
Use these controls to find questions to answer