Find the exact value of the expression: -6 3/5 – (-7 4/15) + 2 1/5

Question

Find the exact value of the expression: -6 3/5 – (-7 4/15) + 2 1/5

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Kim Chi 4 years 2021-07-23T10:51:23+00:00 1 Answers 63 views 0

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  1. thuthuy
    0
    2021-07-23T10:53:04+00:00
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    Answer:

    Step-by-step explanation:

    -6 3/5 – (-7 4/15) + 2 1/5

    Combine the first and third terms first

    -6 3/5 + 2 1/5 = – 4 2/5

    Now deal with the second term

    – (- 7 4/15) = 7 4/15

    7 4/15 – 4 2/5      

    7 4/15 – 4 6/15           Add 15/15 to 7 4/15 Subtract 1 from the 7

    6 19/15 – 4 6/15

    2 13/15

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )