Question

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Answer 1

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Answer 2

a.\(Y=\dfrac{5}{3}-\dfrac{3}{4}=\dfrac{20-9}{12}=\dfrac{11}{12}\)

b.\(Y=\dfrac{7}{2}+\dfrac{2}{3}=\dfrac{21+4}{6}=\dfrac{25}{6}\)

Answer 3

a/Y=5/3 - 3/4

Y=20/12 - 9/12

Y=11/12

b/Y=7/2 + 2/3

Y=21/6 + 4/6

Y=25/6

Answer 4

a, y+ \(\dfrac{3}{4}=\dfrac{5}{3}\)

   y         =\(\dfrac{5}{3}-\dfrac{3}{4}\)

   y         =\(\dfrac{11}{12}\)

b,\(y-\dfrac{2}{3}=\dfrac{7}{2}\)

 y           =\(\dfrac{7}{2}-\dfrac{2}{3}\)

y           =  \(\dfrac{17}{6}\)

Answer 5

a)Y=\(\dfrac{5}{3}-\dfrac{3}{4}\)

Y=\(\dfrac{29}{12}\)

b)Y=\(\dfrac{7}{2}+\dfrac{2}{3}\)

Y=\(\dfrac{25}{6}\)

Answer 6

a ) mẫu chung = 12

y+9/12=20/12

y=20/12-9/12

y=11/12

b) mẫu chung = 6

y-4/6=21/6

y=21/6+4/6

y=25/6