Oblicz :
a) ( 3 3/5 + 2 4/5 ) : 6/7 =
b) 3/4 : 4 1/2 + 7 : 1 1/6 =
c) 3/5 : ( 1 1/2 - 3/4 ) =
Prosze obliczcie to szyboko potrzebuje na teraz dziękuję ;)
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a) ( 3 3/5 + 2 4/5 ) : 6/7 =(18/5+14/5):6/7=32/5:6/7=32/5*7/6=224/30= 7 i 7/15
b) 3/4 : 4 1/2 + 7 : 1 1/6 =3/4:9/2+7/1:7/6=3/4*2/9+7 6/7= 6/36+42/7= 1/6+42/7=7/42+252/42=259/42= 6 i 7/42= 6 i 1/7
c) 3/5 : ( 1 1/2 - 3/4 ) = 3/5:(3/2-3/4)=3/5:(6/4-3/4)=3/5:3/4=3/5*4/3=12/15=4/5
Mam nadzieje że pomogłam ;)
a) ( 3 3/5 + 2 4/5 ) : 6/7 =(18/5+14/5):6/7=32/5:6/7=32/5*7/6=224/30= 7 i 7/15
b) 3/4 : 4 1/2 + 7 : 1 1/6 =3/4:9/2+7/1:7/6=3/4*2/9+7 6/7= 6/36+42/7= 1/6+42/7=7/42+252/42=259/42= 6 i 7/42= 6 i 1/7
c) 3/5 : ( 1 1/2 - 3/4 ) = 3/5:(3/2-3/4)=3/5:(6/4-3/4)=3/5:3/4=3/5*4/3=12/15=4/5
tak to powinno być