Question

Answer 1

Bạn tách ra từng bài nha .

Bài `2`

`a,x + 2 3/4 = 5 2/3`

`=> x+ 11/4 = 17/3`

`=> x= 17/3 -11/4`

`=>x=35/12`

`b,x - 1 4/5= 3 2/7`

`=> x- 9/5 = 23/7`

`=> x= 23/7 + 9/5`

`=>x=178/35`

`c,x xx 3 1/2= 4 3/4`

`=> x xx 7/2 =19/4`

`=> x= 19/4 : 7/2`

`=>x=19/4 xx 2/7`

`=>x=19/14`

`d,x : 2 2/3 = 4 1/3`

`=>x : 8/3 = 13/3`

`=> x= 13/3 xx 8/3`

`=>x=104/9`

Answer 2

3:

a: =>x-3/4=18/8

=>x-3/4=9/4

=>x=9/4+3/4=3

b: =>7/8:x=5/2

=>x=7/8:5/2=7/8*2/5=14/40=7/20

c: x+1/2*1/3=3/4

=>x+1/6=3/4

=>x=3/4-1/6=9/12-2/12=7/12