HOC24
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Môn học
Chủ đề / Chương
Bài học
Lười nên làm ít:)
Vc
Huỳn ê, trong bài có ghi cả BCNN vào đâu
a,\(\dfrac{3}{7}+\dfrac{11}{14}+\dfrac{19}{28}\)
\(=\dfrac{12}{28}+\dfrac{22}{28}+\dfrac{19}{28}\)
\(=\dfrac{12+22+19}{18}\)
\(=\dfrac{53}{28}\)
1.was
2.was
3.were
4.were
5.wasn't
6.wasn't
7.wasn't
8.weren't
9.wasn't
10.was - wasn't
1. team2. are 3. against 4. score5. For6. gets7. wins 8. competitive
1. remember
2. wore
3. ate
4. took
5. had
6. didn't buy
7. didn't talk
8. didn't come
9. didn't close
10. didn't return