Question

[đinh ngọc vy]

a)\(\dfrac{3}{5}\)+\(\dfrac{17}{21}\)*\(\dfrac{17}{21}\)+\(\dfrac{3}{5}\)

b)\(\dfrac{15}{8}\):\(\dfrac{5}{20}\)-\(\dfrac{7}{8}\):\(\dfrac{1}{4}\)

Answer 1

[Kaito Kid]

a)\(\left(\dfrac{3}{5}+\dfrac{17}{21}\right)^2\)

b)4

Answer 2

[đinh ngọc vy]

?