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\(\dfrac{2}{5}+\dfrac{1}{6}\times\dfrac{6}{7}=\dfrac{2}{5}+\dfrac{6}{42}=\dfrac{2}{5}+\dfrac{1}{7}=\dfrac{14}{35}+\dfrac{5}{35}=\dfrac{19}{35}\)
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
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)\(\dfrac{15}{4}-\dfrac{3}{1}=\dfrac{15}{4}-\dfrac{12}{4}=\dfrac{3}{4}\)
sits / reads / goes/ watches/ brushes/ listens/ walks/ fixes/ hears /plays /studies/ repeats
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
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6. a
7.b
8. a
9.c
10.c
11. c
12. b
13. c
14.d
15.a
16. b
17.a
18. b
19.c
20.b
21.a
6. a
7.b
8. a
9.c
10.c
11. c
12. b
13. c
14.d
15.a
16. b
17.a
18. b
19.c
20.b
21.d
B nha
Chọn B nhé
Lần sau e lưu ý đăng bên môn toán để được trợ giúp nhanh hơn nhé