Question

735 x 25 x 4

4,86 x 0,25 x 40

25/35 x 13/18 x 7/9 x 36/26

Answer 1

a: =735x100=73500

b: =4,86x10=48,6

c: \(=\dfrac{5}{7}\cdot\dfrac{7}{9}\cdot\dfrac{13}{18}\cdot\dfrac{18}{13}=\dfrac{5}{9}\)

Answer 2

`735 xx 25 xx 4`

`=735 xx ( 25 xx 4)`

`=735 xx 100`

`=73500`

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`4,86 xx 0,25 xx 40`

`=4,86 xx ( 40 xx 0,25)`

`=4,86 xx 10`

`=48,6`

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`25/35 xx 13/18 xx 7/9 xx 36/26`

`=5/7 xx 13/18 xx 7/9 xx 18/13`

`=(5/7 xx 7/9) xx ( 13/18 xx 18/13)`

`=5/9 xx 1`

`=5/9`