\(a,x:\dfrac{8}{3}=7\\ x=7.\dfrac{8}{3}\\ x=\dfrac{56}{3}\\ b,\dfrac{17}{3}:x=\dfrac{11}{3}-\dfrac{5}{2}\\ \dfrac{17}{3}:x=\dfrac{22-15}{6}\\ \dfrac{17}{3}:x=\dfrac{7}{6}\\ x=\dfrac{17}{3}:\dfrac{7}{6}\\ x=\dfrac{34}{7}\)
a: =>x:8/3=7
hay x=56/3
b: =>17/3:x=3+2/3-2-1/2=1+1/6=7/6
=>x=17/3:7/6=17/3x6/7=102/21=34/7
`x : 2 2/3 = 4 3/1`
`x : 8/3 = 7`
`x=7 xx 8/3`
`x=56/3`
Vậy `x=56/3`
____________________________________
`5 2/3 : x = 3 2/3 - 2 1/2`
`17/3 : x = 11/3 - 5/2`
`17/3 : x = 22/6 - 15/6`
`17/3 : x = 7/6`
`x=17/3 : 7/6`
`x=17/3 xx 6/7`
`x=34/7`
Vậy `x=34/7`