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QN
2
DC
5
MD
1
LD
15 tháng 12 2021
1.the souvenirs inside the temple of literature are sold at a higher price
2. can you help me to make a glass of lemonade, please?
3.Linh finds playing chess interesting because he can play it with his close friend.
4.i think people in the countryside eat a lot of fresh vegetable so they live longer
5.volunteer work is very hard for my sister but she she really enjoys doing it
1 tháng 1 2022
1: \(x=\dfrac{3}{4}-\dfrac{2}{4}=\dfrac{1}{4}\)
2: \(x=\dfrac{2}{11}+\dfrac{1}{5}=\dfrac{10+11}{55}=\dfrac{21}{55}\)
12 tháng 8 2021
1, wears
2,drinks
3,goes
4,have
5,cut
6,watches
7,go
1,doesn't sutdy
Bài `4`
`24/60= 6/15=2/5=8/20`
`42/54=7/9=14/18=21/27`
Bài `5`
`a,` \(\dfrac{4\times5\times3}{3\times7\times4}=\dfrac{5}{7}\)
`b,` \(\dfrac{7\times9\times11}{11\times7\times5}=\dfrac{9}{5}\)
Phần `1`
\(\dfrac{4}{14}\) tối giản
\(\dfrac{12}{15}=\dfrac{12:3}{15:3}=\dfrac{4}{5}\)
\(\dfrac{18}{54}=\dfrac{18:18}{54:18}=\dfrac{1}{3}\)
\(\dfrac{36}{45}=\dfrac{36:9}{45:9}=\dfrac{4}{5}\)
\(\dfrac{50}{70}=\dfrac{50:10}{70:10}=\dfrac{5}{7}\)
\(\dfrac{24}{120}=\dfrac{24:24}{120:24}=\dfrac{1}{2}\)
\(\dfrac{24}{36}=\dfrac{24:12}{36:12}=\dfrac{2}{3}\)
\(\dfrac{132}{55}=\dfrac{132:11}{55:11}=\dfrac{12}{5}\)
`2`
`a,`các phân số tối giản là : \(\dfrac{8}{11};\dfrac{4}{7}\)
`b,` phân số bằng \(\dfrac{3}{4}\) : \(\dfrac{45}{60};\dfrac{12}{16}\)
`3`
các phân số bằng nhau : \(\dfrac{18}{33}=\dfrac{6}{11}\) ; \(\dfrac{5}{7}=\dfrac{20}{28}\) ; \(\dfrac{8}{10}=\dfrac{12}{15}\) ; \(\dfrac{14}{21}=\dfrac{24}{36}\)