Câu hỏi của Luong Thi Le Huyen

Question

1/2: 0,5-1/4;0,25+1/8 :0,125-1/10 :0,1

Giang Hồ Đại Ca · Accepted Answer

Bài này dài nhể :

$\frac{1}{2}:0,5-\frac{1}{4}=\frac{1}{2}:\frac{1}{2}-\frac{1}{4}=1-\frac{1}{4}=\frac{3}{4}$

$0,25+\frac{1}{8}:0,125-\frac{1}{10}:0,1$

= $\frac{1}{4}+\frac{1}{8}:\frac{1}{8}-\frac{1}{10}:\frac{1}{10}=\left(\frac{1}{4}+1\right)-1=\frac{5}{4}-1=\frac{1}{4}$

Câu trả lời:

Bài này dài nhể :

$\frac{1}{2}:0,5-\frac{1}{4}=\frac{1}{2}:\frac{1}{2}-\frac{1}{4}=1-\frac{1}{4}=\frac{3}{4}$

$0,25+\frac{1}{8}:0,125-\frac{1}{10}:0,1$

= $\frac{1}{4}+\frac{1}{8}:\frac{1}{8}-\frac{1}{10}:\frac{1}{10}=\left(\frac{1}{4}+1\right)-1=\frac{5}{4}-1=\frac{1}{4}$