Decimal multiplication and division.

happen to my channel, we are asked to solve this, I would like you to watch to the end and see how The answer is going to come out all right now, looking at this, we are asked to solve 1 divided by 0.05 first. Of all, let me pick this one over 0.05 and analyze it so that you will understand: 1 over 0.05 is equal to first of all 0.05; if I want to remove the decimal fraction, you know, now 0.05, I want If I put my division sign, this dot here becomes one, and every other thing that is here becomes zero. That means if I should remove this decimal point, this 0.05 sentence is five over 100, okay. You sent us five over a hundred, which means I'm going to write this as one over what? five over 100, which can be written as one over five over 100, is the same thing as inverse of What is five over 100, and what is the inverse or reciprocal of five over 100? Hundreds over five, all right, so it means that one over 0.05 is the same thing as hundred over five. We are going to keep this one, then we are going to do this one over 0.005, which is the same as one. Over now, if I write five over, we are going to call this decimal point one, right, this one? Now this one two three becomes our zeros one two three. Now if I should use the same measure. Here, okay, that means that one over five over one thousand is the same thing as what the reciprocal. The reciprocal of one over five thousand is the same as the reciprocal of five over one thousand. Now, what is the reciprocal? of five over one thousand should be one thousand over five, so we are going to have one a thousand all over five, that is for this particular one; now we have gotten this and we have gotten This next thing is what we are asked to subtract 0.005 times 20.5 from whatever. We got one over 0.05 divided by one over 0.005. Now let's all solve this in the bracket. Now our bracket shows what 0.005 times 20.5 is; now this equals if you were to multiply this We are going to use our bracket: 0.005 times 20.5, which will give us 0.1025. Now at this point we are asked to solve the entire thing, so we are going to put Everything we've got here, brought into this particular place—so what do we do now? Let's form our equation. Okay, so it means one over 0.005, which we got as 100 over 5, right? So we have 100 over 5. divided by 1000 over 5, right, because that's what we got for one over 0.005, so that's what we're going to replace it with 1000 over 5 you have 1000 over 5 minus now this is what we got 0.005 times 20.5 We got 0.1025, 0.1025. Okay, now at this point I want to clean everything so that we will Focus on this and solve it, so while I'm cleaning this, I'd like you to drop it for me right here. comment section the topic that you would like me to treat, the topic that you would love me to treat Okay, this is actually a past JAM question. A past JAM question, so this is what we have. Let me write. It's here 100 over 5 divided by 1000 over 5 minus 0.1025, okay. All right, so this is what we have. Using board maths, using board maths, you know that you are supposed to solve this division. Before we subtract, we are going to solve these two first. Let's put them in brackets, okay? I want you to note something they said: 100 over 5 divided by 1000 over 5. You know, if we Change this division into multiplication; we're going to take the reciprocal of this, right? See. What I mean is 100 over 5; if I should change this division to multiplication, it will now be what? Hope you understand. Okay, now that we have this, you know, we can go ahead and say five. Divide each of one, divide this one; they are going to have one, okay? Now, these two zeros are going to Canceling these two zeros means that what remains is 1 over 10, which is what we have. Stay here, do you understand? Okay, so let's all go ahead and do that here, so I can write this. as what hundred over five times five over one thousand, so five divides itself, one divides itself One right, these two zeros we cancel these two zeros, so we are left with what: 1 over 10, so this. means 1 over 10 minus 0.1025. Now we need to convert this 1 over 10 to decimal so that we will be able to solve it with this one, okay? If you've followed me to this level, that means that You're actually enjoying what I'm doing, please, I advise you to click that subscription button. Please subscribe to the channel and also click on the notification bell so that you'll be notified. Whenever I upload a new video, alright, so that means we need to convert this one over to 10. to decimal, just watch how I'm going to do that. So for the sake of those who don't know me, this Is 1 over 10, meaning 1 divided by 10? To do that, you need your words, you need your long division. So we are going to do this: the 10 that is doing the dividing will be outside the one that is being divided. Okay, so 10 divided by 1, you're going to have zero points. Now you have zero here again, you add zero. come to this place, then divide 10; you are going to have one. One times 10 will give you 10 when you Subtract, you have zero, which means you are true with what this is, so it means that 1 over 10. Okay, now we have what that means. What we have here is 0.1 minus what 0.1025. and this will give us, let us use our calculator, minus 0.0025 And this is your answer. Thank you for zoalsing. Bye.