Question

tính: a, 4/3 x 4 x 5/16

       b, 3 : 1/2 : 3/7 : 5

Answer 1

\(a,=\dfrac{4\times4\times5}{3\times16}=\dfrac{5}{3}\)

\(b,=\dfrac{3\times2\times7\times5}{3}=60\)

Answer 2

\(a,\dfrac{4}{3}\times4\times\dfrac{5}{16}=\dfrac{4\times4\times5}{3\times1\times4\times4}=\dfrac{5}{3}\)

\(b,3:\dfrac{1}{2}:\dfrac{3}{7}:5=\dfrac{14}{5}\)

Answer 3

\(\dfrac{4}{3}x4x\dfrac{5}{16}=\dfrac{80}{48}=\dfrac{5}{3}\)

\(3x2x\dfrac{7}{3}x\dfrac{1}{5}=\dfrac{42}{15}=\dfrac{14}{5}\)

Answer 4

a. \(\dfrac{4}{3}\)x 4 x \(\dfrac{5}{16}\)= \(\dfrac{16}{3}\)x \(\dfrac{5}{16}\)= \(\dfrac{5}{3}\)

b. 3 : 1/2 : 3/7 : 5 = 21 : 3/7 : 5 = 49 : 5 = 49/5

Answer 5

a)4/3 x 4 x 5/16

=4/3 x5/4

=5/3

b)3 : 1/2 : 3/7 : 5

=3 x 2 x 7/3 x 1/5

=6 x 7/15

=14/5

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