Question

( \(\frac{1}{2}\)+ \(\frac{3}{4}\)+\(\frac{4}{5}\)) : 3 =

bằng bao nhiêu ? trình bày cách làm nhé

Answer 1

= (5/4 +4/5) :3 

=41/20 :3

=41/60

Answer 2

c1:\(\left(\frac{1}{2}+\frac{3}{4}+\frac{4}{5}\right):3\)

\(=\left(\frac{10}{20}+\frac{15}{20}+\frac{16}{20}\right):3\)

\(=\frac{41}{20}:3=\frac{41}{60}\)

c2: \(\left(\frac{1}{2}+\frac{3}{4}+\frac{4}{5}\right):3\)

\(=\frac{1}{6}+\frac{1}{4}+\frac{4}{15}\)

\(=\frac{10}{60}+\frac{15}{60}+\frac{16}{60}\)

\(=\frac{41}{60}\)

Answer 3

      \(\left(\frac{1}{2}+\frac{3}{4}+\frac{4}{5}\right):3\)

\(=\left(\frac{10}{20}+\frac{15}{20}+\frac{16}{20}\right).\frac{1}{3}\)

\(=\frac{41}{20}.\frac{1}{3}\)

\(=\frac{41}{60}\)

Lưu ý: dấu "." là dấu nhân

Answer 4

cảm ơn các bạn đã trả lời nha làm quen đi