Question

Thực hiện phép tính:

\(\frac{5}{18}-1,456:\frac{7}{25}+4,5\cdot\frac{4}{5}\)

 

\(9,6\cdot2\frac{1}{2}-\left(2\cdot125+1\frac{5}{12}\right):\frac{1}{4}\)

Answer 1

lớp 7???

Answer 2

lớp 6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 3

\(\frac{5}{18}-1,456:\frac{7}{25}+4,5.\frac{4}{5}=-\frac{119}{90}\)

Answer 4

\(\frac{5}{18}-1,456:\frac{7}{25}+4,5.\frac{4}{5}\)

=\(\frac{5}{18}-5,2+3,6\)

=\(-\frac{119}{90}\)

\(9,6\cdot2\frac{1}{2}-\left(2.125-1\frac{5}{12}\right):\frac{1}{4}\)

=\(9,6-2,5-\left(250-\frac{17}{12}\right)\cdot4\)

=\(24-\frac{2983}{12}\cdot4\)

=\(24-\frac{2983}{3}=\frac{-2911}{3}\)

Answer 5

hỏi chi cho lắm vậy

dễ vậy mà