Question

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

Answer 1

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

Answer 2

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

Answer 3

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