Question

Podpunkt b proszę o pomoc dam naj

Answer 1

1 1/2-1/4 / 1 1/2-3/8 = 6/4-1/4 / 12/8-3/8 = 5/4 / 9/8 =5/4*8/9=1 1/9

1 1/2+1/4 / -1/4 +3/8= 6/4+1/4 / 1/8 = 7/4*8/1 = 14a) x+y-z/y+z= 1 1/2 + (-1/4) - (-3/8)/(-1/4)+(-3/8)= 1 4/8 + ( -2/8)-(-3/8)/ ( -2/8)+(-3/8)= 1 2/8 + 3/8 / -5/8 = 1 5/8 /-5/8 = 13/8* (-8/5)= -2 3/5b)x-y+2z/x+y+3z= 1 1/2 -  (-1/4) + 2*(-3/8)/1 1/2 +(-1/4)+3*(-3/8)= 1 2/4 -  (-1/4) +(-3/4)/ 1 4/8 + ( -2/8)-(-9/8)= 1 3/4 + (-3/4)/ 2 3/8 = 1/   2 3/8 = 2 3/8