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(-3/4)+0,7+2/5=
5,7-(-1/3)+(0,4)=
(-3/3)*3 i 1/9:(-0,7)=
16,25:(-0,5)*2/5=
(-3/4)+0,7+2/5= -3/4 + 7/10 + 2/5 =
=-15/20 +14/20 + 8/20 =
=7/20
5,7-(-1/3)+(0,4)=57/10 +1/3+4/10=
=171/30+10/30+12/30=
=193/30=6 13/30
(-3/3)*3 i1/9:(-0,7)= -1 *28/9 : (-7/10) =28/9 * 10/7 = 280/63 = 4 28/63=
=4 i 4/9
16,25:(-0,5)*2/5=65/4 :(-5/10)*2/5=
=65/4 *(-10/5) * 2/5 =
=-650/20 * 2/5 =
=-1300/100 = -13
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(-3/4)+0,7+2/5= -3/4 + 7/10 + 2/5 =
=-15/20 +14/20 + 8/20 =
=7/20
5,7-(-1/3)+(0,4)=57/10 +1/3+4/10=
=171/30+10/30+12/30=
=193/30=6 13/30
(-3/3)*3 i1/9:(-0,7)= -1 *28/9 : (-7/10) =28/9 * 10/7 = 280/63 = 4 28/63=
=4 i 4/9
16,25:(-0,5)*2/5=65/4 :(-5/10)*2/5=
=65/4 *(-10/5) * 2/5 =
=-650/20 * 2/5 =
=-1300/100 = -13