Question

Tính:
a) 3/14 x 2
b) 3 x 7/9
c) 4/11 : 2
d) 4 x 5/8
giúp mình giải chi tiết nha^^
Cảm ơn nhiều^^

Answer 1

=6/12=1/2

=21/9=7/3

=4/11x2=8/11

=20/8=5/2

Answer 2

a) 3/14 x 2 = 6/14 = 3/7
b) 3 x 7/9= 21/9 = 7/3
c) 4/11 : 2= 4/11 x 1/2 = 2/11
d) 4 x 5/8 = 5/2

Answer 3

a \(\dfrac{3}{14}\times2=\dfrac{3}{7}\)

b \(3\times\dfrac{7}{9}=\dfrac{7}{3}\)

c \(\dfrac{4}{11}:2=\dfrac{4}{11}\times\dfrac{1}{2}=\dfrac{4}{22}=\dfrac{2}{11}\)

d \(4\times\dfrac{5}{8}=\dfrac{5}{2}\)

Answer 4

=6/12=1/2

=21/9=7/3

=4/11x2=8/11

=20/8=5/2