Question

rút gọn rồi tính :

a . 33/ 22 x 15/35            

b. 16 / 9/4 

 c. 88 / 72 x 3/4 

 

Answer 1

\(a)\frac{33}{22}\times\frac{15}{35}\)

\(=\frac{3}{2}\times\frac{3}{7}\)

\(=\frac{9}{14}\)

Answer 2

\(b)16:\frac{9}{4}\)

\(=16\times\frac{4}{9}\)

\(=\frac{64}{9}\)

Answer 3

\(c)\frac{88}{72}\times\frac{3}{4}\)

\(=\frac{11}{9}\times\frac{3}{4}\)

\(=\frac{11}{12}\)

Answer 4

A.9/14

B.64/9

C.11/12