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O
7 tháng 5 2022
\(\dfrac{2}{5}+\dfrac{1}{6}\times\dfrac{6}{7}=\dfrac{2}{5}+\dfrac{6}{42}=\dfrac{2}{5}+\dfrac{1}{7}=\dfrac{14}{35}+\dfrac{5}{35}=\dfrac{19}{35}\)
NN
13 tháng 3 2022
a) 4+2/5=22/5
b) 5/4+2=13/4
c) 3+3/2=9/2
d) 3/4-1/8=5/8
e) 17/15-7/10=13/30
g) 25/12-15/8=5/24
h) 5-4/3=11/3
i)15/4-3=3/4
13 tháng 3 2022
a)\(\dfrac{4}{1}+\dfrac{2}{5}=\dfrac{20}{5}+\dfrac{2}{5}=\dfrac{22}{5}\)
b)\(\dfrac{5}{4}+\dfrac{2}{1}=\dfrac{5}{4}+\dfrac{8}{4}=\dfrac{13}{4}\)
c)\(\dfrac{3}{1}+\dfrac{3}{2}=\dfrac{6}{2}+\dfrac{3}{2}=\dfrac{9}{2}\)
d)\(\dfrac{3}{4}-\dfrac{1}{8}=\dfrac{6}{8}-\dfrac{1}{8}=\dfrac{5}{8}\)
e)\(\dfrac{17}{15}-\dfrac{7}{10}=\dfrac{34}{30}-\dfrac{21}{30}=\dfrac{13}{30}\)
g)\(\dfrac{25}{12}-\dfrac{15}{8}=\dfrac{50}{24}-\dfrac{45}{24}=\dfrac{5}{24}\)
h)\(\dfrac{5}{1}-\dfrac{4}{3}=\dfrac{15}{3}-\dfrac{4}{3}=\dfrac{11}{3}\)
i)\(\dfrac{15}{4}-\dfrac{3}{1}=\dfrac{15}{4}-\dfrac{12}{4}=\dfrac{3}{4}\)
DT
Đỗ Thanh Hải
CTVVIP
19 tháng 8 2021
1 My aunt doesn't like going to the cinema
2 What do you like doing?
3 My brothers don't like eating cheese
4 Do you like playing the guitar
5 My parents like watching TV in the evening
6 Does Jenny get up at 7.00
8 What is your sister's hobby
30 tháng 1 2022
2 ballons
3 gloves
4 smile
5 music
6 could
7 clock
1 với 8 mk chx lm đc
LN
31 tháng 10 2021
sits / reads / goes/ watches/ brushes/ listens/ walks/ fixes/ hears /plays /studies/ repeats
S
20 tháng 1 2022
1+2.(His/They/He)wants(us/our/we)to go to class tomorrow.
3+4.(They/Their/Them)don't like (we/our/us)brothers.
5+6.(She/They/Her)goes to school with (me/I/my)son.
7+8.These letters are for(you/your/they)and(my/I/me).
9+10+11.(Me/My/I)want(him/his/he)to call(my/I/me)sister right now.
12+13+14.(They/Their/Them) give (my/I/me)a present on(me/my/I)birthday.
15+16+17.(Our/We/Us)know all about (you/your/we)friends and (your/you/us.
18+19+20+21.(Us/We/our) look after(they/their/them) children for(their/them/they)while(they/their/them)are away
TL
20 tháng 1 2022
1+2.(His/They/He)wants(us/our/we)to go to class tomorrow.
3+4.(They/Their/Them)don't like (we/our/us)brothers.
5+6.(She/They/Her)goes to school with (me/I/my)son.
7+8.These letters are for(you/your/they)and(my/I/me).
9+10+11.(Me/My/I)want(him/his/he)to call(my/I/me)sister right now.
12+13+14.(They/Their/Them) give (my/I/me)a present on(me/my/I)birthday.
15+16+17.(Our/We/Us)know all about (you/your/we)friends and (your/you/us.
18+19+20+21.(Us/We/our) look after(they/their/them) children for(their/them/they)while(they/their/them)are away
2/5
2/5