Question

[Trần Đức Anh]

1/5 + 1/ 20 + 1/ 4 bằng bao nhiêu

Answer 1

[Lã Tùng Lâm]

1/2 nhé

Answer 2

[★彡℘é✿ทợท彡★ 2]

TL

\(\frac{1}{5}+\frac{1}{20}+\frac{1}{4}\) MSC 20

\(\frac{1}{5}=\frac{1\times4}{5\times4}=\frac{4}{20}\)

\(\frac{1}{4}=\frac{1\times5}{4\times5}=\frac{5}{20}\)

= \(\frac{4}{20}+\frac{1}{20}+\frac{5}{20}=\frac{10}{20}\)

 \(\frac{10}{20}=\frac{10\div10}{20\div10}=\frac{1}{2}\)

Vậy \(\frac{1}{5}+\frac{1}{20}+\frac{1}{4}=\frac{1}{2}\)

HT k cho mik nha