không rút gọn đc nhé bn

Số cần tìm là:

235/13=235/13

Đáp số:235/13

hổng rút được tối giản rùi mà

235/13 = 235/13 (235/13 la phan so toi gian)

63 / 175 = 9 / 25

47 / 235 = 1 / 5

63 / 72 = 7 / 8

63/175= 9/25; 47/235= 1/5; 63/72=7/8

\(\frac{63}{175}=\frac{7\cdot9}{7\cdot25}=\frac{9}{25}\)

\(\frac{47}{235}=\frac{47}{5\cdot47}=\frac{1}{5}\)

\(\frac{63}{72}=\frac{7\cdot9}{8\cdot9}=\frac{7}{8}\)

\(=\dfrac{19}{21}\)

mọi người giúp em với

\(\frac{70}{95}=\frac{15}{19}\)

70/95=14/19

\(\frac{70}{95}\)=\(\frac{14}{19}\)

HT~

12/18=2/3

1/5 giữ nguyên

17/20 giữ nguyên

15/95=3/19

                                       HT

\(\frac{60}{72}=\frac{60:12}{72:12}=\frac{5}{6}\)

\(\frac{70}{95}=\frac{70:5}{95:5}=\frac{14}{19}\)

\(\frac{150}{360}=\frac{150:30}{360:30}=\frac{5}{12}\)

 60 / 72 = 5/6

70/95 = 14/19 

150/360 = 5/12 

\(\frac{60}{72}=\frac{60\div12}{72\div12}=\frac{5}{6}\)

\(\frac{70}{95}=\frac{70\div5}{95\div5}=\frac{14}{19}\)

\(\frac{150}{360}=\frac{150\div30}{360\div30}=\frac{5}{12}\)

\(\dfrac{60}{72}=\dfrac{60:12}{72:12}=\dfrac{5}{6}\\ \dfrac{70}{95}=\dfrac{70:5}{95:5}=\dfrac{14}{19}\\ \dfrac{150}{360}=\dfrac{150:30}{360:30}=\dfrac{5}{12}\)

\(\dfrac{60}{72}=\dfrac{5}{6}\)

\(\dfrac{70}{95}=\dfrac{14}{19}\)

\(\dfrac{150}{360}=\dfrac{5}{12}\)

Ta có:\(\frac{1999999995}{9999999995}\)=\(\frac{1999999995}{199999995.5}\)=\(\frac{1}{5}\)