Question

Answer 1

\(g,\dfrac{1}{7}-\dfrac{8}{7}:8-3:\dfrac{3}{4}.\left(-2\right)^2\)

\(=\dfrac{1}{7}-\dfrac{1}{7}-4.4\)

\(=\dfrac{1}{7}-\dfrac{1}{7}-16\)

\(=-16\)

 

Answer 2

\(f,\dfrac{1}{8}.15\dfrac{2}{5}+1\dfrac{4}{5}.\dfrac{1}{8}-17\dfrac{1}{5}.\dfrac{1}{8}\)

\(=\dfrac{1}{8}.\dfrac{77}{5}+\dfrac{9}{5}.\dfrac{1}{8}-\dfrac{86}{5}.\dfrac{1}{8}\)

\(=\dfrac{77}{40}+\dfrac{9}{40}-\dfrac{43}{20}\)

\(=\dfrac{43}{20}-\dfrac{43}{20}=0\)

Answer 3

Ây nha,chết tiệt mày đg làm cái quái gì vậy hả, chết tiệt.