TL

=0,3703

Hok tốt

t i k cho mik nha

TL:

= 0,3703 nha bạn .

               ~HT~

0,3703 

ht bn

a: \(\dfrac{1.4}{2.5}=\dfrac{14}{25}\)

\(\dfrac{1.4}{2.5}=\dfrac{14}{25}\)

\(\frac{10}{27}\)

\(\frac{10}{27}\)

a)10/27

b)28/5

c)25/21

Chúc bạn học tốt

Chỉ cách làm luôn nha

a)  \(1,2\div3,24=10\div27\)

b)  \(\frac{2}{7}\div0,42=100\div147\)

p/s: chúc bạn học tốt

Ta có :

\(1.2:3.24=\frac{1.2}{3.24}=\frac{10}{27}\)

\(\frac{2}{7}:0.42=\frac{2}{7}:\frac{21}{50}=\frac{2}{7}\cdot\frac{50}{21}=\frac{100}{147}\)

a) 1,2 : 3,24 = \(\frac{6}{5}:\frac{81}{25}\)= \(\frac{6}{5}.\frac{25}{81}=\frac{10}{27}\)= 10 : 27

b) \(\frac{2}{7}:0,42=\frac{2}{7}:\frac{21}{50}\)\(=\frac{2}{7}.\frac{50}{21}=\frac{100}{147}\)= 100 : 147

a) 2,04 : ( -3,12 )

= 2,04/-3,12 = 204/-312 = -204/312 = -17/26

Lời giải:

a.

\(1,5:2,16=\frac{15}{10}: \frac{216}{100}=\frac{3}{2}: \frac{54}{25}=\frac{3}{2}.\frac{25}{54}=\frac{25}{36}\)

b.

\(4\frac{2}{7}: \frac{3}{5}=\frac{30}{7}:\frac{3}{5}=\frac{30}{7}.\frac{5}{3}=\frac{50}{7}\)

c.

\(\frac{2}{9}: 0,3=\frac{2}{9}: \frac{3}{10}=\frac{2}{9}.\frac{10}{3}=\frac{20}{27}\)