Question

\(\left(\dfrac{\left(6,2:0,31-\dfrac{5}{6}.0,9\right).\left(0,2+0,15\right):0,2}{\left(2+1\dfrac{4}{11}.0,22:0,1\right).\dfrac{1}{33}}\right)\)

Giúp mk na mina thanks.

Answer 1

\(\left(\dfrac{\left(6,2:0,31-\dfrac{5}{6}.0,9\right).\left(0,2+0,15\right):0,2}{\left(2+1\dfrac{4}{11}.0,22:0,1\right).\dfrac{1}{33}}\right)\)

\(=\dfrac{\left(20-0,75\right).0,35:0,2}{\left(2+3\right).\dfrac{1}{33}}\)

\(=\dfrac{19,25.0,35:0,2}{5.\dfrac{1}{33}}\)

\(=\dfrac{33,6875}{\dfrac{5}{33}}=\dfrac{1617}{80}=20,2125\)

( KT lại nha ! có thể mk tính chưa đúng )

Answer 2

\(\dfrac{\left(6,2:0,31-\dfrac{5}{6}.0,9\right).\left(0,2+0,15\right):0,2}{\left(2+1\dfrac{4}{11}.0,22:0,1\right).\dfrac{1}{33}}\)

\(=\dfrac{\left(20-0,75\right).0,35:0,2}{\left(2+3\right).\dfrac{1}{33}}\)

\(=\dfrac{19,25.0,35:0,2}{5.\dfrac{1}{33}}\)

\(=\dfrac{33,6875}{\dfrac{5}{33}}\)

\(=\dfrac{1617}{80}\)

\(=20,2125\)