Question

Tính chi tiết giúp mik:

a/ 3/4 + 2

b/2/3 - 3/8

c/ 2/9 x 3/8

d/18: 2/3

Mik cần gấp lắm 😭😭

Answer 1

\(3/4 + 2/1 = 3/4 + 8 / 4 = 11/4\)

\(2/3 - 3/8 = 16/24 - 9 / 24 = 7 /24\)

2/9 . 3/8 = 6 /72

18/1 . 3 / 2 = 54 / 2

Answer 2

a)\(=\dfrac{3}{4}+\dfrac{8}{4}=\dfrac{11}{4}\)

b)\(=\dfrac{16}{24}-\dfrac{9}{24}=\dfrac{7}{24}\)

c)\(=\dfrac{2\times3}{9\times8}=\dfrac{6}{72}=\dfrac{1}{12}\)

d)\(=18\times\dfrac{3}{2}=\dfrac{54}{2}=27\)

Answer 3

11/4

7/24

 6 /72

 54 / 2

Answer 4

a,\(\dfrac{3}{4}+2\)
 \(=\dfrac{3}{4}+\dfrac{8}{4}\)\(=\dfrac{11}{4}\)
b,\(\dfrac{2}{3}-\dfrac{3}{8}\)
\(=\dfrac{16}{24}-\dfrac{9}{24}=\dfrac{7}{24}\)
c,\(\dfrac{2}{9}\)x\(\dfrac{3}{8}\)
=\(\dfrac{1}{12}\)
d,18:\(\dfrac{2}{3}\)
=\(\dfrac{18}{1}\)x\(\dfrac{3}{2}\)=\(27\)