Math, asked by SouhindraPatra, 9 months ago

is there manjeet1217 please answer my question toady is my exam​

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Answers

Answered by ark007
2

Answer:

i will give the answers of some of this questions

Step-by-step explanation:

1)2integer 2/3 × 5/12=

3×2+2/3×5/12

=8/3×5/12

8×5 and 3×12

40/36

10/9

Answered by atashka4mandala
3

Answer:

I am NOT manjeet1217 but I have tried my best to explain as best as I can:)

I have used the same method I explained in (a) and (b) for the rest of the questions if are confused.

Step-by-step explanation:

a)2 2/3 ×5/12=1 1/9

First we will convert 2 2/3 into a improper fraction,which will be 8/3(3×2+2)

Then the question will become 8/3×5/12 then

1.Either 8 and 12 can be cancelled with 4 and made as 2 and 3 then the question becomes

2/3×5/3=10/9 which can be converted to a mixed fraction       1 1/9

2.Or write it straight as 8/3×5/12=40/36 then reduce it to 10/9 =1 1/9

b)1 3/4×8/15=14/15

First we will convert 1 3/4 into a improper fraction,which will be 7/4(4×1+3)

Then the question will become 7/4×8/15 4 and 8 cancels and becomes 1 and 2 and the question becomes 7×2/15=14/15

c)12/25×6 2/3=12/25×20/3

                      =4/5×4=16/5

d)20×3 1/5=4×16=64

e)1 1/4×2 2/5=3

f)3 3/8×5 1/9=3/4×23

                    =69/4

g)5 1/7×5 1/9=4/7×46=184/7

h)8 1/8×28=65/2×7=455/7

                              =65(because 7×65=455)

9.Find

a)5/9 of 105

Ans)5/9×105

      5/3×35=175/3

b)4/7 of 42

Ans)4/7×42

      4×6=24

c)3/10 of 5/6

Ans)3/10×5/6

    = 1/2×1/2=1/4

d)3/5 of 3 1/5

Ans)3/5×16/5

    =12/5

Hope this helps you:)

And ALL THE VERY BEST FOR YOUR EXAM

Hope you score amazing marks:)

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