问题
解答题
化简比
5:3.5; 1:1.8; 3.75:1.
答案
5:3.5,
=(5×2):(3.5×2),
=10:7;
1:1.8,
=(1×5):(1.8×5),
=5:9;
3.75:1,
=(3.75×20):(1×20),
=75:20,
=(75÷5):(20÷5),
=15:4.
化简比
5:3.5; 1:1.8; 3.75:1.
5:3.5,
=(5×2):(3.5×2),
=10:7;
1:1.8,
=(1×5):(1.8×5),
=5:9;
3.75:1,
=(3.75×20):(1×20),
=75:20,
=(75÷5):(20÷5),
=15:4.