Question

Answer 1

Bánh xe đó quay đc: \(1\dfrac{1}{3}.7\dfrac{1}{2}=7\dfrac{1}{6}\)  (vòng)

Answer 2

9m 7dm = 9m + \(\dfrac{7}{10}m=9\dfrac{7}{10}m\) 

11cm 3mm = 11cm + \(\dfrac{3}{10}cm=11\dfrac{3}{10}cm\)

1m 85cm = 1m + \(\dfrac{17}{20}m=1\dfrac{17}{20}m\)

6m 6cm = 6m + \(\dfrac{3}{50}m=6\dfrac{3}{50}\)m