Question

Tính :\(\frac{11}{9}.\frac{15}{4}-\frac{11}{4}.\frac{7}{9}-\frac{11}{9}.\frac{5}{4}\)

Answer 1

\(\frac{11}{9}.\frac{15}{4}-\frac{11}{4}.\frac{7}{9}-\frac{11}{9}.\frac{5}{4}\)

=\(\frac{11}{9}.\frac{15}{4}-\frac{11}{9}.\frac{7}{4}-\frac{11}{9}.\frac{5}{4}\)

=\(\frac{11}{9}\).\(\left(\frac{15}{4}-\frac{7}{4}-\frac{5}{4}\right)\)

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

=\(\frac{11.3}{3.3.4}\)

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

Chúc bn học tốt

Answer 2

Trả lời:

\(\frac{11}{9}.\frac{15}{4}-\frac{11}{4}.\frac{7}{9}-\frac{11}{9}.\frac{5}{4}\)

\(=\frac{11}{9}.\left(\frac{15}{4}-\frac{7}{4}-\frac{5}{4}\right)\)

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

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

Hok tốt!

Vuong Dong Yet

Answer 3

11/9 . 15/4 - 11/4 . 7/9 - 11/9 . 5/4

= 11/9 . ( 15/4 - 7/4 - 5/4 )

= 11/9 . 3/4

= 11/12