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2 April, 08:02

when I add or subtract fractions first I must convert the denominators so they are common. Then I can add or subtract the?

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  1. 2 April, 08:22
    0
    Yes and the denominator will stay the same ... for example: 8/10 + 1/10 = 9/10
  2. 2 April, 08:24
    0
    Numerators.

    Remember you have to convert the numerators as well.

    Example: - 2/3 + 1/6

    LCD = 6

    2/3 becomes 2/3 * 2/2 = 4/6

    4/6 + 1/6 = 5/6.
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