问题
填空题
已知x+0.3=1.2,则x:0.4的最简整数比是______,比值是______.
答案
x+0.3=1.2,
x=1.2-0.3,
x=0.9;
(1)x:0.4,
=0.9:0.4,
=(0.9×10):(0.4×10),
=9:4;
(2)x:0.4,
=0.9÷0.4,
=2
.1 4
故答案为:9:4;2
.1 4
已知x+0.3=1.2,则x:0.4的最简整数比是______,比值是______.
x+0.3=1.2,
x=1.2-0.3,
x=0.9;
(1)x:0.4,
=0.9:0.4,
=(0.9×10):(0.4×10),
=9:4;
(2)x:0.4,
=0.9÷0.4,
=2
.1 4
故答案为:9:4;2
.1 4