Question

Podręcznik str 18 zad 1, Nie tylko wynik klasa 1 gimbaza.
a)4 i 1/2+3*2 i 3/4
b) 17/40-1/5: 1 3/5
c) 1 2/10:3/5- 1 1/3*3/10
d) (3/4+7/9)*(2 3/8-6/16
e) 32-2*(7 2/5*5-2 1/2:10):6
f)[1/2+(1/2)-(1/2)]:1/2
Proszę o pomoc!

Answer 1

A) 4 i 1/2 + 3/1 * 11/4 = 4 i 1/2 + 33/2 = 4 i 2/4 +33/4 = 4 i 35/4 = 12 i 3/4 \
b) 17/40 - 1/5 : 8/5 = 17/40 - 1/8 = 17/40 - 5/40 = 12/40 = 3/10
c) 12/10 * 5/3 - 4/3 * 3/10 = 4/2 *1/1 - 2/7 * 1/5 = 2 - 2/5 = 1 i 5/5 - 2/5 = 1 i 3/5
d) ( 27/36 + 38/36) * ( 2 i 6/16 - 6/16) = 55/36 * 2 = 55/36 * 2/1 = 55/18 * 1/1 = 55/18 = 3 i 1/18
e32 -2 * ( 37/5 * 5/1 - 5/2 : 10/1) : 6 = 32 - 2 * ( 37 - 5/2 * 1/2 ) : 6 = 32 - 2 * ( 37 - 1/4 ) : 6 = 32 - 2 * 36 i 3/4 : 6 = 32 -147/* 1/6 = 32 - 147/12 = 32 - 12 i 3/12 = 20 - 3/12 = 19 i 9/12 = 19 i 3/4 
f) [ 1/2 + 1/2 * 1/2 + (1/2)do 3 ] : 1/2 = [ 1/2 + 1/4 + 1/8 ] : 1/2 = [4/8 + 2/8 + 1/8] : 1/2 = 7/8 : 1/2 = 7/8 * 2/1 = 7/4 * 1/1 = 7/4 = 1 i 3/4 
proszę i liczę na naj :)

Answer 2

a)4 i 1/2+3*2 i 3/4=9/2+3*11/4=9/2+33/4=18/4+33/4=51/4=12 3/4
 b) 17/40-1/5: 1 3/5=17/40-1/5:8/5=17/40-1/5*5/8=17/40-1/8=17/40-5/40=12/40=3/10
 c) 1 2/10:3/5- 1 1/3*3/10=12/10*5/3-4/3*3/10=2-2/5=10/5-2/5=8/5=1 3/5
 d) (3/4+7/9)*(2 3/8-6/16)=(27/36-28/36)*(38/16-6/16)=-1/36*32/16=8/144=18
 
e) 32-2*(7 2/5*5-2 1/2:10):6=32-2*(37/5*5-5/2*1/10):6=32-2*(37-1/4):6=32-2*(148/4-1/4):6=32-2*147/4:6=32-147/2*1/6=32-147/12=384/12-147/12=237/12=19 9/12=19 3/4