Question

rút gọ các phân số \(\dfrac{8}{26}\)  \(\dfrac{16}{40}\) \(\dfrac{19}{57}\) \(\dfrac{45}{105}\)

Answer 1

\(\dfrac{8}{26}=\dfrac{8:2}{26:2}=\dfrac{4}{13}\\ \dfrac{16}{40}=\dfrac{16:8}{40:8}=\dfrac{2}{5}\\ \dfrac{19}{57}=\dfrac{19:19}{57:19}=\dfrac{1}{3}\\ \dfrac{45}{105}=\dfrac{45:15}{105:15}=\dfrac{3}{7}\)

Answer 2

8/26=4/13

16/40=2/5

19/57=1/3

45/105=3/7

Answer 3

4/13

2/5

1/3

3/7

Answer 4

\(\dfrac{8}{26}=\dfrac{8:2}{26:2}=\dfrac{4}{13}\)

\(\dfrac{16}{40}=\dfrac{16:8}{40:8}=\dfrac{2}{5}\)

\(\dfrac{19}{57}=\dfrac{19:19}{57:19}=\dfrac{1}{3}\)

\(\dfrac{45}{105}=\dfrac{3}{7}\)