1. x/4=3 2/x =1 2. x:103,2=5.6:17,2 11 1/5: 7=10 1/2:x

Question

1. x/4=3
2/x =1
2. x:103,2=5.6:17,2
11 1/5: 7=10 1/2:x

Answer 1

Х/4=3
х=12

2/х=1
х=2

х÷103,2=5,6÷17,2
х×17,2=5,6×103,2
х=577,92÷17,2
х=33,6

11 1/5÷7=10 1/2÷х
11,2÷7=10,5÷х
11,2х=10,5×7
х=73,5÷11,2
х=6,5625