Wykonaj. x*3=15 3/4 11*x=3 2/3 12:x=2 2/5 1/12:x= 1/4 x:1/4=24 4/5

x*3 = 15 3/4 3x = 63/4 /*4 12x = 63 /12 x = 63/12 x = 5 1/4 11*x=3 2/3 11x = 11/3 /*3 33x = 11 /33 x = 1/3 12:x=2 2/5 12/x = 12/5 /*5x 60 = 12x /12 x = 5 1/12:x= 1/4 x/12 = 1/4 /*12 x = 3 x:1/4=24 4/5 4x = 124 /4 x = 31

a)x*3=15 3/4 x= 15 3/4:3 x=63/4*1/3 x=21/4=5 1/4 b) 11*x=3 2/3 x=3 2/3:11 x=11/3 * 1/11=1/3 c)12:x=2 2/5 x=2 2/5*12 x=12/5*1/12 x=1/5 d)1/12:x=1/4 x=1/4*12/1=3 e)x:1/4=24 4/5 x=24 4/5*1/4 x=124/5*1?4=31/5=6,5

x*3=15 3/4 3x=15 3/4 /3 x=5 1/4 x=5.25 11*x=3 2/3 11x=3 2/3 /11 x=1/3 12:x=2 2/5 1/12x=2 2/5 /1/12 x=4 4/5 1/12:x= 1/4 12x=1/4 /12 x=1/48 x:1/4=24 4/5 4x=24 4/5 /4 x=11 1/5