Toán Lớp 6: 42/46+250/180+-2121/2323+-125125/143143
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Toán Lớp 6: 42/46+250/180+-2121/2323+-125125/143143
Comments ( 2 )
Giải đáp:
42/46+250/180+(-2121/2323)+(-125125/143143)
=21/23+25/18+(-21/23)+(-125/143)
=(21/23-21/23)+(25/18-125/143)
=25/18-125/143
=3575/2574-2250/2574
=1325/2574
42/(46)+(250)/(180)+(-2121)/(2323)+(-125125)/143143
=21/(23)+(25)/(18)+(-21)/(23)+(-125)/143
=21/(23)+(25)/(18)+(-21)/(23)+(-125)/143
=(25)/(18)+(-125)/143
=3575/2574-2250/2574
=1325/2574