Question

7/8 - 25/100 + 9/8 + 16/17 + 9/4+ 18/17

Answer 1

Trả lời giúp mình với

Answer 2

\(\dfrac{7}{8}-\dfrac{25}{100}+\dfrac{9}{8}+\dfrac{16}{17}+\dfrac{9}{4}+\dfrac{18}{17}\)

\(=\left(\dfrac{7}{8}+\dfrac{9}{8}\right)+\left(\dfrac{16}{17}+\dfrac{18}{17}\right)+\left(-\dfrac{25}{100}+\dfrac{9}{4}\right)\)

\(=2+2+2\\ =6\)

 

Answer 3

Answer 4

theo lời dặn của Trịnh Thuỳ Linh mik sửa lại:

\(\dfrac{7}{8}-\dfrac{25}{100}+\dfrac{9}{8}+\dfrac{16}{17}+\dfrac{9}{4}+\dfrac{18}{17}\)

\(=\left(\dfrac{7}{8}+\dfrac{9}{8}\right)-\left(\dfrac{25}{100}-\dfrac{9}{4}\right)+\left(\dfrac{16}{17}+\dfrac{18}{17}\right)\\ =2-\left(-2\right)+2\\ =2+2+2=6\)