yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Fractions greater than 1 on the number line


2m read
·Nov 10, 2024

We're asked to move the dot to 7/6 on the number line, so pause this video. I can move this dot right over here, but I encourage you: pause the video and put your finger on where 7/6 would be on the number line.

All right, now let's work on this together. So what they're saying is, from 0 to this point on the number line, right over there, that gets us to 1/6. Each of these spaces are a sixth. So we go 0, 1/6, 2/6, 3/6, 4/6, 5/6, 6/6, 7/6. Let me make sure I got that: each of these are a sixth. So we have 1, 2, 3, 4, 5, 6, 7/6.

So that's 7/6 on that number line. Now they have other ways of getting at the same idea. For example, they say which point is at nine-fourths on the number line, and they ask us to choose one answer. We can look at the choices here. So which choice shows nine-fourths on the number line? Pause this video and see if you can pick that.

All right, now let's look at each of these. It looks like in choice A, the space between zero and one is split into one, two, three, four equal spaces. So as we go from zero to this next line, that's a fourth, and it seems like it keeps going.

So this is one-fourth, two-fourths, three-fourths, four-fourths, five-fourths, six-fourths, seven-fourths, eight-fourths. Nine-fourths is here; that's what we're looking for. But the dot is not at nine-fourths—it's at ten-fourths, eleven-fourths, twelve-fourths—so I don't like choice A.

Let's see choice B. Let's see what this is. We have divided the space between zero and one into one, two, three, four, five, six equal spaces. So each of these are a sixth. To go from zero to one, you've already gone six-sixths, and then seven-sixths, eight-sixths, nine-sixths.

So this is nine-sixths, not nine-fourths. Let's look at this last choice. I'm already feeling like it should be the answer, but we can see that the spaces are the same as in our first choice.

So these are each fourths, once again—I know that because the space between zero and one, or any two whole numbers, is divided into four equal spaces. So to go from zero to one, you go four-fourths, and then five-fourths, six-fourths, seven-fourths, eight-fourths, and nine-fourths.

So choice C is definitely looking good. Let's do one more example. Here they say what fraction is located at point A on the number line. Pause this video and see if you can answer that.

All right, so between whole numbers, how many equal spaces do we have? It looks like we have one, two, three, four, five, six equal spaces. So things are divided into sixths: 1/6, 2/6, 3/6, 4/6, 5/6, 6/6—which is equal to 1—and then 7/6.

So this is 7 over 6, just like that, and we are done.

More Articles

View All
Geometric series word problems: swing | Algebra 2 | Khan Academy
We’re told a monkey is swinging from a tree. On the first swing, she passes through an arc of 24 meters. With each swing, she passes through an arc one half the length of the previous swing. So what’s going on here? Let’s say this is the top of the rope …
2015 AP Biology free response 1 d e
All right, part D. To investigate the claim that exposure to light overrides the genetically controlled circadian rhythm, the researchers plan to repeat the experiment with mutant mice lacking a gene that controls the circadian rhythm. Predict the observe…
First and second laws of thermodynamics | Khan Academy
If you take a very hot coffee, say in a thermoflask, and keep it in a room, then you know that that coffee will automatically start cooling down all by itself until it reaches its room temperature. Right? But my question is why can’t the RSE happen? Why c…
Writing geometric series in sigma notation
So we have a sum here of 2 plus 6 plus 18 plus 54, and we could obviously just evaluate it, add up these numbers. But what I want to do is I want to use it as practice for rewriting a series like this using sigma notation. So let’s just think about what’…
The REAL cost of owning a Cirrus Vision Jet
The Cirrus Vision Jet is a really impressive aircraft… on paper. It’s got a range of 1,275 nautical miles; that’s the equivalent of Melbourne to Ali Springs, London to Greece, even New York to Dallas. It can cruise over 310 knots. It’s got state-of-the-ar…
Does a Falling Slinky Defy Gravity?
[Music] So, this is the modeling that I’ve been doing. This was done with the purpose of trying to explain the data that was extracted from one of the movies of real falling slinky. What you see in this one is that the turns at the top are snapping toget…