`-3/4`+`1/6`+`-7/8`
`-2/3`+`-1/3`:0,2+25%
`-3/4`.`7/8`+1`1/2`+`-3/4`:`8/9`
`-3/4`+`1/6`+`-7/8` `-2/3`+`-1/3`:0,2+25% `-3/4`.`7/8`+1`1/2`+`-3/4`:`8/9`
By Alexandra
By Alexandra
`-3/4`+`1/6`+`-7/8`
`-2/3`+`-1/3`:0,2+25%
`-3/4`.`7/8`+1`1/2`+`-3/4`:`8/9`
`1,`
`-3/4 + 1/6 + (- 7/8)`
`=-7/12 + (-7)/8`
`=-35/24`
`2,`
`-2/3 +(-1/3) : 0,2 + 25%`
`=-2/3 + (-5)/3 +1/4`
`=-7/3 + 1/4`
`=-29/15`
`3,`
`-3/4 . 7/8 + 1 1/2 + (-3/4) : 8/9`
`=-21/32 + 3/2 + (-27/32)`
`=-21/32 + (-27/32) + 3/2`
`=-3/2 + 3/2`
`=0`
`-3/4 + 1/6 + (-7)/8`
`= -18/24 + 4/24 + (-21)/24`
`= (4 – 18 – 21)/24 = -35/24`
`-2/3 + (-1)/3 ÷ 0,2 + 25%`
`= -2/3 – 1/3 ÷ 1/5 + 1/4`
`= -2/3 – 5/3 + 1/4`
`= (-2 – 5)/3 + 1/4`
`= -7/3 + 1/4`
`= 3/12 – 28/12 = -25/12`
`-3/4 . 7/8 + 1 1/2 + (-3)/4 ÷ 8/9`
`= -3/4 . 7/8 + 3/2 + (-3)/4 . 9/8`
`= -3/4 (7/8 + 9/8) + 3/2`
`= -3/4 . 2 + 3/2`
`= -3/2 + 3/2 = 0`