0.64:1.44=64:144=2x2x4x4:3x3x4x4=2x2:3x3=4:9
1又7分之5:3分之2=7分之12:3分之2=21x12/7:21x2/3=36:14=18:7
0.75:1又2分之1=4分之3:2分之5=4分之3:4分之10=3:10
0.64:1.44=64:144=2x2x4x4:3x3x4x4=2x2:3x3=4:9
1又7分之5:3分之2=7分之12:3分之2=21x12/7:21x2/3=36:14=18:7
0.75:1又2分之1=4分之3:2分之5=4分之3:4分之10=3:10