Math 6th grade

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Story Problem - Factoring
An "A" train leaves a subway station every 13 minutes. An "E" train leaves evry 9 minutes. If both trains just left the station on parallel tracts, when will both leave the station together again?

  • Math 6th grade -

    Since LCM(9,13) = 9*13 = 117
    After 117 minutes,
    9 A trains will have left,
    13 E trains will have left
    and then the cycle starts over.

    Trains run on tracks, not tracts.

  • Math 6th grade -

    117minutes

  • Math 6th grade -

    Since LCM(9,13) = 9*13 = 117
    After 117 minutes,
    9 A trains will have left,
    13 E trains will have left
    and then the cycle starts over.

    Trains run on tracks, not tracts. ~Alisson~

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