00:03
Number 16 here you have to multiply the fractions so 1 by 6 into 5 by 9 load is pretty simple you have to multiply the numerator and denigate separate like that is 1 5 by 6 into 9 which is equal to 5 divided this is the answer next question question number b so it is 9 by 20 into 6 by 7.
01:02
So here we have to remember if there is any common factor between the numerator and denominator so you can divide them before multiplying.
01:12
We can do it after multiplying also but it is always advisable and better to basically divide the common factor between the numerator and denominator before proceeding.
01:24
So let us see how we can do that again you can see between 9 and 7 so there is no common factor we cannot do anything between 6 and 20 so 2 is the point factor so yeah 6 by 2 is equal to 20 by 2 is equal to so now i can multiply it is 9 into 3 5 10 into 7 so which is equal to 27 divided by let us go to the next question.
02:27
Let is see your fractions have 12 divided by 25 into 25 by 36.
02:43
Again you have to see if there is a common factor you have to divide it.
02:51
So you can see 25 by 25 both are there.
02:56
So common factor is both are there.
02:56
So common factor is 25 so you can divide both the 25 25 25 is equal to 1.
03:05
There is also one but in 236 the contract is 12 so 12 by 12 is equal to 36 by 12 is now okay it's actually multiply it 1 into 1 divided by 1 and 2 this is equal to 1 by this is okay next is question b where at multiply 30 divided by 49 21 you can see if there is a common factor that would divide so between 30 and 100 common factor is so you can do like this it's 3 hundred by 10 is equal to between 49 and 21 the common factor is 7 22 in by 7 is equal to 3 49 by 7 is divided by 7 into 10...