a motorcycle has two wheels, the first has a diameter of 65cm, while the second has one of 42 cm. what is the minimal distance traveled so the two wheels has turned a natural number of turns?
3 answers
Can you help me out please ?
d1 = n pi (65)
d1 = m pi (42)
65 n = 42 m
m/n is an integer
= 65/42 = 5*13 / 2*7*3
heavens to mugatroid !!! No common factors !
multiply top and bottom by 2*3*5*7*13 = 2730
d1 = m pi (42)
65 n = 42 m
m/n is an integer
= 65/42 = 5*13 / 2*7*3
heavens to mugatroid !!! No common factors !
multiply top and bottom by 2*3*5*7*13 = 2730
since 42 and 65 have no common factors,
LCM(42,65) = 42*65 = 2730
LCM(42,65) = 42*65 = 2730
1 answer