Đáp án:
`a) x + 3/4=11/6 - 3/24 : 15/4`
`<=> x + 3/4= 9/5`
`<=> x= 9/5 - 3/4`
`<=> x= 21/20`
Vậy `x=21/20`
`b) x - 3/7 + 1/2 : 3/4 = 13/14`
`<=> x - 3/7 + 2/3 = 13/14`
`<=> x- 3/7= 13/14 - 2/3`
`<=> x- 3/7=11/42`
`<=> x= 11/42+ 3/7`
`<=> x= 29/42`
Vậy `x=29/42`
`c, (x-3/6): 4/8 + 3/6=14/24`
`<=> (x-3/6):4/8 =14/24 - 3/6`
`<=> (x- 3/6):4/8 = 1/12`
`<=> x- 3/6 = 1/12 × 4/8`
`<=> x- 3/6 = 1/24`
`<=> x= 1/24 + 3/6`
`<=> x= 13/24`
Vậy `x=13/24`