Question

Tính 8 phần 9 cộng 9 phần 10

Answer 1

=80/90+81/90=161/90

Answer 2

\(\dfrac{8}{9}+\dfrac{9}{10}=\dfrac{80}{90}+\dfrac{81}{90}=\dfrac{161}{90}\)\(=...\)

Answer 3

161/90

Answer 4

\(=\dfrac{80}{90}+\dfrac{81}{90}=\dfrac{161}{90}\)

Answer 5

\(\dfrac{8}{9}+\dfrac{9}{10}=\dfrac{80}{90}+\dfrac{81}{90}=\dfrac{161}{90}\)

Answer 6

161/90

Answer 7

\(\dfrac{161}{90}\)