Question

GIẢI HỘ MIK BÀI NÀY NHA , ( TÍNH HẾT CÂU RA NHA , KO PHẢI TÍNH MỖI KQ THÔI ĐÂUN)

Answer 1

\(a,\dfrac{8}{35}\)

\(b,\dfrac{15}{8}\)

\(c,\dfrac{30}{21}\)

\(d,\dfrac{72}{175}\)

Answer 2

de qha

Answer 3

A.8/35

B.15/8

C.30/21

D.72/175

Answer 4

\(a,\dfrac{4}{5}\times\dfrac{2}{7}=\dfrac{8}{35}\)

\(b,\dfrac{5}{8}\times3=\dfrac{15}{8}\)

\(c,5\times\dfrac{6}{21}=\dfrac{30}{21}\)

\(d,\dfrac{3}{5}\times\dfrac{4}{5}\times\dfrac{6}{7}=\dfrac{72}{175}\)

Answer 5

a,4/5.2/7

=8/35

b,5/8.3

=15/8

c,5.6/21

=10/7

d,3/5.4/5.6/7

=12/25.6/7

=72/175

Answer 6

8/35

5/8x 3/1= 15/8

5/1x 2/7= 10/7

72/175