Question

giúp tớ trả lời bài 1 để kiểm tra đáp án với ạ, tớ cảm ơn

Answer 1

1:

1: \(=5+\dfrac{27}{5}+\dfrac{27}{23}+\dfrac{1}{2}-\dfrac{5}{27}+\dfrac{16}{23}\)

=10/2+43/23+27/5-5/27

=12,08

2: =3/8(27+1/5-51-1/5)+19=-9+19=10

3: \(=\dfrac{-1}{5}+\dfrac{1}{5}-\dfrac{1}{2}-\dfrac{1}{2}=-1\)

4: \(=-\dfrac{5}{4}\left(35+\dfrac{1}{6}-45-\dfrac{1}{6}\right)=\dfrac{-5}{4}\cdot\left(-10\right)=\dfrac{50}{4}=\dfrac{25}{2}\)

5: \(=\dfrac{7}{3}\left(-\dfrac{3}{4}+\dfrac{2}{5}+\dfrac{3}{5}-\dfrac{1}{4}\right)=0\)

6: \(=\dfrac{7}{8}:\left(\dfrac{2}{9}-\dfrac{1}{18}+\dfrac{1}{36}-\dfrac{5}{12}\right)\)

=7/8:(-2/9)=-7/8*9/2=-63/16