@Queen
`-3 3/4 + -10/25 + -6/12`
`= -15/4 - 2/5 - 1/2`
`= -75/20 - 8/20 - 10/20`
`= (-75-8-10)/20`
`= -93/20`
`-5/12 + 1 5/18 - 2,25`
`= -5/12 + 23/18 - 9/4`
`= -15/36 + 46/36 - 81/36`
`= (-15 + 46 - 81)/36`
`= -50/36`
`= -25/18`
`-1 2/3 + 3/4 - 1/2 + 2 1/6`
`= -5/3 + 3/4 - 1/2 + 13/6`
`= -20/12 + 9/12 - 6/12 + 26/12`
`= (-20+9-6+26)/12`
`= 9/12`
`= 3/4`
`7/12-(-1/5)-5/6+2/3+(-1/5)`
`= 7/12 + 1/5 - 5/6 + 2/3 - 1/5`
`= 7/12 - 10/12 + 20/12`
`= (7-10+20)/12`
`=17/12`
