Question

[Nguyễn Quỳnh Hương]

1 phần 2 chia 0,5 - 1 phần 4 chia 0,25 + 1 phần 8 chia 0,125 - 1 phần 10 chia 0,1

Answer 1

[𝔅𝔲̀𝔦 ℌ𝔬𝔞̀𝔫𝔤 𝔗𝔥𝔦𝔢̂𝔫 𝔏𝔞𝔪]

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

= 1/2 x 2 - 1/4 x 4 + 1/8 x 8 - 1/10 x 10

= 1 - 1 + 1 - 1

= 0

Answer 2

[Lê Minh Vũ]

\(\frac{1}{2}\)\(\div\)\(0,5\)\(-\)\(\frac{1}{4}\div0,25\)\(+\)\(\frac{1}{8}\div0,125\)\(-\)\(\frac{1}{10}\div0,1\)

\(=\)\(\frac{1}{2}\)\(\div\)\(\frac{1}{2}\)\(-\)\(\frac{1}{4}\div\frac{1}{4}\)\(+\)\(\frac{1}{8}\div\frac{1}{8}\)\(-\)\(\frac{1}{10}\div\frac{1}{10}\)

\(=\)\(\frac{1}{2}\)\(\times\frac{2}{1}\)\(-\)\(\frac{1}{4}\times\frac{4}{1}\)\(+\)\(\frac{1}{8}\times\frac{8}{1}\)\(-\)\(\frac{1}{10}\times\frac{10}{1}\)

\(=\)\(1-1+1-1\)

\(=\)\(0\)