\(=\dfrac{\left(\dfrac{13}{84}\cdot\dfrac{7}{5}-\dfrac{5}{2}\cdot\dfrac{7}{180}\right):\dfrac{43}{18}+\dfrac{9}{2}\cdot\dfrac{1}{10}}{70.5-528:7.5}\)

\(=\dfrac{\left(\dfrac{13}{60}-\dfrac{7}{72}\right)\cdot\dfrac{18}{43}+\dfrac{9}{20}}{0.1}\)

\(=10\cdot\left[\dfrac{43}{360}\cdot\dfrac{18}{43}+\dfrac{9}{20}\right]\)

\(=10\cdot\left[\dfrac{1}{20}+\dfrac{9}{20}\right]=10\cdot\dfrac{10}{20}=5\)

70,5 - 528 : 15/2

= 70,5 - 352/5

= 70,5 - 70,4

= 0,1

70,5-528:15/2= 70,5-352/5

                      = 70,5-70,4

                      = 0,1

CHÚC BẠN HỌC TỐT

ta có:

70,5-528:15/2

=70,5-528.2/15

=70,5-1056/15

=70,5-70,4=0,1

ticks cho tui với

Tính

\(70,5-528:\frac{15}{2}=70,5-\frac{352}{5}\)

\(=\frac{1}{10}\)

Học tốt

\(70,5-528:\frac{15}{2}\)

\(=70,5-\frac{352}{5}\)

\(=\frac{1}{10}\)

Hok tốt !

TL:

70,5-528:14/2

= 70,5 - 75,42857143

= -4,928571429

Học tốt

Tính

\(70,5-528:\frac{14}{2}=70,5-\frac{528}{7}\)

\(=\frac{-69}{14}\)

Học tốt

xyz là j

5

(-5/28+1,75+8/35):(3,9/20)

=9/5 : 0.195

=321/100

=1.605

70,5 - 528 : 15​/2 = 70,5 - (528x2)/15 = 70,5 - 1056/15 = 70,5-70,4=0,1

A) \(\frac{1}{2}\cdot\left(\frac{2}{9}+\frac{3}{7}-\frac{5}{27}\right)\) 

\(=\frac{1}{2}\cdot\frac{1}{2}\)

\(=\frac{1}{4}\)

B)   \(\left(\frac{-5}{28}+1.75+\frac{8}{35}\right):\left(-3\frac{9}{20}\right)\)

\(=\left(\frac{-5}{28}+\frac{7}{4}+\frac{8}{35}\right):\frac{-69}{20}\)

\(=\frac{14}{5}:\frac{-69}{20}\)

\(=\frac{-56}{69}\)