Question

10% + (1)3/4 - 0,9 : 9/4 giải dùm với ạ

Answer 1

10% + (1)3/4 - 0,9 : 9/4 

\(=\dfrac{1}{10}+\dfrac{7}{4}-\dfrac{9}{10}\times\dfrac{4}{9}\)

\(=\dfrac{1}{10}+\dfrac{7}{4}-\dfrac{2}{5}\)

\(=\dfrac{2}{20}+\dfrac{35}{20}-\dfrac{8}{20}\)

\(=\dfrac{2+35-8}{20}\)

\(=\dfrac{29}{20}\)

Answer 2

\(=\dfrac{1}{10}+\dfrac{7}{4}-\dfrac{9}{10}\times\dfrac{4}{9}=\dfrac{1}{10}+\dfrac{7}{4}-\dfrac{2}{5}=\dfrac{2}{20}+\dfrac{35}{20}-\dfrac{8}{20}=\dfrac{29}{20}\)

Answer 3

`= 1/10 + 7/4 - 9/10 : 9/4`

`= 1/10 + 7/4 - 9/10 xx 4/9`

`= 1/10 + 7/4 - 2/5`

`= (2 + 35 - 8)/20`

`= 5/4`.

Answer 4

`10% + (1)3/4 - 0,9 : 9/4`

=`1/10 + 7/4 - 9/10 xx 4/9`

=`37/20 -2/5 `

= `129/20`