`(3 1/4 : x) . ( -1 1/4) = -5/3 - 5/6`
`(3 1/4 : x) . ( -1 1/4) =(-5)/2`
`(13/4 : x) . (-5)/4 = (-5)/2`
`13/4 : x = (-5)/2 : (-5)/4`
`13/4:x=(-5)/2 xx (-4)/5`
`13/4:x=2`
`x=13/4 :2`
`x=13/4xx1/2`
`x=13/8`
`( 3 1/4 : x)(-1 1/4) = -5/3 - 5/6`
`=> (13/4 : x).(-5/4) = -5/2`
`=> 13/4 : x = -5/2 : (-5/4)`
`=> 13/4 : x = 2`
`=> x = 13/4 : 2`
`=> x = 13/8`
`(3 1/4:x)*(-1 1/4)=-5/3-5/6`
`(13/4:x)*(-5/4)=-5/2`
`13/4:x=2`
`x=13/4:2`
`x=13/8`