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Lesson 1: Multiplying fractions and whole numbers visually

# Fraction multiplication on the number line

Sal uses number lines to help solve multiplication equations.

## Want to join the conversation?

• I only understand this a little bit not alot but a little bit 😗
• Why am I stupid
(1 vote)
• I doubt that you're stupid. Math can be difficult, especially when you get behind even a little. When it comes to math, everything you learn builds up on what came before and is important to the next thing you learn.

An example is learning division is important to understanding what fractions are. A fraction is just another way of showing division. Now, you might ask: "Then why do we need fractions?" Well, fractions can make other math easier because you don't have to "carry around" clunky decimal values. For instance, 1/3 is much easier to work with than 0.33333333333333333333333... (repeating forever).

I won't try to fool you and say math isn't hard, it definitely can be, and I still remember the difficulty I had in school with fractions. However, persistence will get you there, and Khan Academy is a huge gift for math. If you realize that you don't understand a topic, then you can just go back and watch more videos and practice more.

I know the last thing most people want to do is work math problems, but that's what you have to do in order to really grasp the math. Watch the videos, read the material, and do the problems until you understand. Identify what's hard for you, go back and keep working at that, then come back here and try this again. If something is still hard, then figure out what it is and go learn and practice that, too.

You just might surprise yourself.
• everyone have a blessed wonderful day
• Have a good day!
(1 vote)
• you too:)
• isn't 2/3 x 4 = 2 x 4 ?
(1 vote)
• i kinda understand but i there another way to do this cause it's hard to understand
• A simpler way to do this is by multiplying the whole number by the numerator (top or left number) of the fraction.

For example, `4 x 2/3`:
``4 x 2/3 = (4 x 2)/3 = 8/3``
• is there other way to do this
(1 vote)
• 9 day's ago 9x9 = 81
(1 vote)
• Can 3-7 work?