Question

Answer 1

ý là làm mỗi câu c thôi ấy hả

\(\dfrac{34}{15}+-\dfrac{25}{6}-\dfrac{4}{15}+\dfrac{7}{6}\)

\(=\left(\dfrac{34}{15}-\dfrac{4}{15}\right)+\left(-\dfrac{25}{6}+\dfrac{7}{6}\right)\)

\(=2+-3\)

\(=-1\)

 

 

Answer 2

c) 34/15 +-25/6-4/15+7/6

= (34/15+-4/15)+(-25/6+7/6)

= 30/15+(-3)

= 30/15+(-45)

=-15/15

= -1