Verified Answer :

smurfs2
  1. find their GCF

    2. The factors of  56  are  1, 2, 4, 7, 8, 13, 28, and 56 .
    And the factors of  64  are  1, 2, 4, 8, 16, 32, and 64 .

    3.Find the common factors which are  1, 2, 4, and 8 .
    The greatest factor is  8 .

    4. divide 56÷8=7
    divide 64÷8 = 8

    8×7=56      8×8=64     56+64

    56+64 = 8×(7+8)   

    56+64 = 120

    8× (7+ 8) = 8×15
    = 120       =120

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