Question

[Quỳnh Nga 😘]

C= 5 9/10  : 3/2 - ( 2 1/3 x 4 1/2 - 2 x 2 1/3 ) : 7/4 

62,87 + 35, 14 +4 , 13 + 8,35 + 4,86 + 5,65

Giai hẳn ra giúp mình nhé . Mình cần gấp , giúp mình với

Answer 1

[Vy Thị Hoàng Lan ( Toán Học )]

\(C=5\frac{9}{10}:\frac{3}{2}-\left(2\frac{1}{3}.4\frac{1}{2}-2.2\frac{1}{3}\right):\frac{7}{4}\)

\(=\frac{59}{10}:\frac{3}{2}-\left(\frac{7}{3}.\frac{9}{2}-2.\frac{7}{3}\right):\frac{7}{4}\)

\(=\frac{59}{15}-\left[\frac{7}{3}\left(\frac{9}{2}-2\right)\right]:\frac{7}{4}\)

\(=\frac{59}{15}-\frac{35}{6}:\frac{7}{4}\)

\(=\frac{59}{15}-\frac{10}{3}\)

\(=\frac{9}{15}=\frac{3}{5}\)

\(\cdot62,87+35,14+4,13+8,35+4,86+5,65\)

\(=\left(62,87+4,13\right)+\left(35,14+4,86\right)+\left(8,35+5,65\right)\)

\(=67+40+14\)

\(=121\)