Question

5/7+2/7:0,25-0,75

Answer 1

\(\dfrac{5}{7}+\dfrac{2}{7}:0,25-0,75\)

\(=\dfrac{5}{7}+\dfrac{2}{7}\times4-\dfrac{4}{3}\)

\(=\dfrac{5}{7}+\dfrac{8}{7}-\dfrac{4}{3}\)

\(=\dfrac{13}{7}-\dfrac{4}{3}=\dfrac{39}{21}-\dfrac{28}{21}=\dfrac{11}{21}\)

Answer 2

`5/7 + 2/7 : 0,25 - 0,75`

= `5/7 + 2/7 : 1/4 - 3/4`

= `5/7 + 2/7 xx 4 - 3/4`

=`5/7 + 8/7 - 3/4`

= `13/7 - 3/4`

= `31/28`

Answer 3

5/7+2/7:0,25-0,75

\(=\dfrac{5}{7}+\dfrac{2}{7}x4-\dfrac{3}{4}\)

\(=\dfrac{5}{7}+\dfrac{8}{7}-\dfrac{3}{4}\)

\(=\dfrac{20}{28}+\dfrac{32}{28}-\dfrac{21}{28}\)

\(=\dfrac{31}{28}\)

 

Answer 4

`5/7 + 2/7 : 0.25 - 0.75`

`= 5/7 + 2/7 xx 4 - 3/4`

`= 5/7 + 8/7 - 3/4`

`= 13/7 - 3/4`

`= 52/28 - 21/28`

`= 31/28`.

Answer 5

$\frac{5}{7}+\frac{2}{7}:0,25-0,75$

 

= $\frac{5}{7}+\frac{2}{7}:\frac{1}{4}-\frac{3}{4}$

= $\frac{5}{7}+\frac{2}{7}\times 4-\frac{3}{4}$

=$\frac{5}{7}+\frac{8}{7}-\frac{3}{4}$

= $\frac{13}{7}-\frac{3}{4}$

= $\frac{31}{28}$