Zad 1 Oblicz plisska mam to na jutrooo a)7 i 4/9 - 2 i 1/6= b)3 i 1/4 - 8 i 5/6= c)-2 i3/5 + 7 i 1/3= d)-3,12 - 6,1= e)-7,2 + 12,36= f)6,4 - 10,25= g)-3 1/7 - 1,2= h)4 i 5/6 -8,2= PLISSKA MUSZE TO MIEĆ DAJE NAJJ <3 DZIEKI Z DÓRY <3
Angelikawydra
A) 7 i 4/9 - 2 i 1/6= 7 i 16/36- 2 i 6/36= 5 i 10/36=5 i 5/18 b) 3 i 1/4- 8 i 5/6 = 3 i 6/24 - 8 i 20/ 24 = - 5 14/24 = - 5 i 7/12 c) - 2 3/5 + 7 i 1/3 = - 2 i 9/15+ 7 i 5/15 = - 4 i 11/15 d) -3,12- 6,1 = - 9,22 e) - 7,2+ 12,36= - 5,16 f) 6,4-10,25= - 3,85 g) - 3 i 1/7 - 1,2 = - 3 i 1/7- 1 i 2/10 = - 3 i 1/7 - 1 i 1/5= -3 i 5/35 - 1 i 7/35 = =- 4 i 12/35 h) 4 i 5/6 - 8,2 = 4 i 5/6 - 8 i 2/10= 4 i 5/6 - 8 i 1/5= 4 i 25/30 - 8 i 6/30 = 4 i 25/30 - 7 i 36/30 = - 3 i 11/30
b) 3 i 1/4- 8 i 5/6 = 3 i 6/24 - 8 i 20/ 24 = - 5 14/24 = - 5 i 7/12
c) - 2 3/5 + 7 i 1/3 = - 2 i 9/15+ 7 i 5/15 = - 4 i 11/15
d) -3,12- 6,1 = - 9,22
e) - 7,2+ 12,36= - 5,16
f) 6,4-10,25= - 3,85
g) - 3 i 1/7 - 1,2 = - 3 i 1/7- 1 i 2/10 = - 3 i 1/7 - 1 i 1/5= -3 i 5/35 - 1 i 7/35 =
=- 4 i 12/35
h) 4 i 5/6 - 8,2 = 4 i 5/6 - 8 i 2/10= 4 i 5/6 - 8 i 1/5= 4 i 25/30 - 8 i 6/30 = 4 i 25/30 - 7 i 36/30 = - 3 i 11/30