Question

viết hổn số, phần trăm dứi dạng phân số tối giản

A 3 1/4    B 40%     C 3,5     d  2,25

Answer 1

A. \(3\dfrac{1}{4}=\dfrac{13}{4}\)

B. \(40\%=\dfrac{40}{100}=\dfrac{2}{5}\)

C. \(3,5=3\dfrac{1}{2}=\dfrac{7}{2}\)

D. \(2,25=2\dfrac{1}{4}=\dfrac{9}{4}\)

Answer 2

a) \(\dfrac{31}{4}\)

b) \(\dfrac{2}{5}\)

c) \(\dfrac{7}{2}\)

d) \(\dfrac{9}{4}\)

Answer 3

a, \(3\dfrac{1}{4}=\dfrac{13}{4}\)

b, \(40\%=\dfrac{40}{100}=\dfrac{2}{5}\)

c, \(3,5=\dfrac{35}{10}=\dfrac{7}{2}\)

d, \(2,25=\dfrac{225}{100}=\dfrac{9}{4}\)

Answer 4

a,\(\dfrac{13}{4}\)

b,\(\dfrac{2}{5}\)

c,\(\dfrac{7}{2}\)

d,\(\dfrac{9}{4}\)

Answer 5

a. \(3\dfrac{1}{4}\) = \(\dfrac{13}{4}\)

b. 40% = \(\dfrac{40}{100}=\dfrac{2}{5}\)

c. 3,5 = \(\dfrac{7}{2}\)

d. 2,25 = \(\dfrac{9}{4}\)

Answer 6

\(3\dfrac{1}{4}=\dfrac{13}{4}\)

\(40\%=\dfrac{2}{5}\)

\(3.5=\dfrac{7}{2}\)

\(2.25=\dfrac{9}{4}\)