Steps

Peter makes steps long 70 cm, John 45 cm long. After how many meters their footsteps meet?

Result

x =  6.3 m

Solution:

70=2⋅5⋅7 45=3⋅3⋅5  LCM(70,45)=630 x=630/100=6.3  m 70 = 2 \cdot 5 \cdot 7 \ \\ 45 = 3 \cdot 3 \cdot 5 \ \\ \ \\ \text{LCM}(70, 45) = 630 \ \\ x = 630/100 = 6.3 \ \text{ m }

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