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Subtract five and two-fifths minus two and nine-tenths. Justify your steps.

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asked by nenaa
  1. 5 2/5 - 2 9/10

    5 4/10 - 2 9/10

    4 14/10 - 2 9/10 = 2 5/10 = 2 1/2

    The easier way is to use decimals.

    5.4 - 2.9 = 2.5

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