Bài tập 1 trang 27 VBT Toán 4 tập 2

9 BT SGK

Điền dấu >, = , < thích hợp vào chỗ chấm:

\(\displaystyle{4 \over 5}....{2 \over 5}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\quad \quad\quad{{19} \over {20}}....{{21} \over {20}}\displaystyle\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\quad \quad\quad{{23} \over {30}}...\dfrac{17}{30}\)

\(\displaystyle{5 \over 7}...{6 \over 7}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\quad \quad\quad{{37} \over {50}}...{{33} \over {50}}\displaystyle\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\quad \quad\quad{35 \over 44}...{{41} \over {44}}\)

Hướng dẫn giải chi tiết

\(\displaystyle{4 \over 5}>{2 \over 5}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\;\,\quad \quad\quad{{19} \over {20}}<{{21} \over {20}}\displaystyle\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\quad \quad\quad{{23} \over {30}}>\dfrac{17}{30}\)

\(\displaystyle{5 \over 7}<{6 \over 7}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\quad \quad\quad{{37} \over {50}}>{{33} \over {50}}\displaystyle\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\quad \quad\quad{35 \over 44}<{{41} \over {44}}\)

-- Mod Toán lớp 4 HỌC247

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