1) 2/3+17/3-7/2-19/3-5=?2)-|-2/3-(+3/2)|-|(-1/5)|+(-2/5)|=?3)1*2/1+2*3/1+3*4/1+4*5/1=?
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1) 2/3+17/3-7/2-19/3-5
=(2+17-19)/3-7/2-5
=0-7/2-10/2
=-17/2
2)-|-2/3-(+3/2)|-|(-1/5)|+(-2/5)|
=-|-2/3-3/2|-|-1/5-2/5|
=-|-13/6|-|-3/5|
=13/6-3/5
=47/30
3)1*2/1+2*3/1+3*4/1+4*5/1
=2+6+12+20
=40
=(2+17-19)/3-7/2-5
=0-7/2-10/2
=-17/2
2)-|-2/3-(+3/2)|-|(-1/5)|+(-2/5)|
=-|-2/3-3/2|-|-1/5-2/5|
=-|-13/6|-|-3/5|
=13/6-3/5
=47/30
3)1*2/1+2*3/1+3*4/1+4*5/1
=2+6+12+20
=40
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