Question

tính

\(\frac{2}{5}\)x \(\frac{3}{4}+\frac{6}{15}:\frac{4}{9}\)x 5

Answer 1

\(\frac{3}{10}+\frac{9}{2}\)

\(=\frac{24}{5}\)

Answer 2

\(\frac{2}{5}\)x \(\frac{3}{4}\)+ \(\frac{6}{15}\): \(\frac{4}{9}\)x 5

= \(\frac{3}{10}\)+ \(\frac{6}{15}\)x \(\frac{9}{4}\)x 5

= \(\frac{18}{60}\)+ \(\frac{24}{60}\)x \(\frac{9}{4}\)x 5

= \(\frac{7}{10}\)x \(\frac{9}{4}\)x 5

= \(\frac{63}{40}\)x 5

= \(\frac{63}{8}\)

Answer 3

\(\frac{24}{5}\)Học tốt!

Answer 4

24 PHAN 5

~HOK TOT~

MINH KHONG BIET GHI CAC KIA SORRY NHA