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Expressing Fractions?

Need some help with these fractions. Please be specific as possible with the answer:

A. 3/4 + 2/3 x 3/4

B. 2/3 + 3/5 x 3/2 x 4/9 - 1/3 x 1/5

C. 3/4 (2/1 + 1/2) + 1/2 x 3/4

D. 2/5 (3/4 - 1/2 x 2/3) + 1/2 (2/3 + 5/9)

Thanks!

2 Answers

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  • 1 decade ago
    Favorite Answer

    a)

    3/4 + 2/3 X 3/4

    3/4 + 6/12

    3/4+ 2/4 = 5/4 = 1 1/4

    b)

    2/3 + 3/5 X 3/2 X 4/9 - 1/3 X 1/5

    2/3 + 36/90 - 1/15

    2/3 + 6/15 - 1/15

    2/3 + 5/15

    2/3 + 1/3 = 1

    c)

    3/4 ( 2/1 + 1/2 ) + 1/2 X 3/4

    3/4 ( 4/2 + 1/2 ) + 3/8

    3/4 X 5/2 + 3/8

    15/8 + 3/8 = 18/8 = 2 1/4

    d)

    2/5 (3/4 - 1/2 X 2/3 ) + 1/2 ( 2/3 + 5/9 )

    2/5 (3/4 - 2/6 ) + 1/2 ( 6/9 + 5/9 )

    2/5 (9/12 - 4/12 ) + 1/2 X 11/9

    2/5 X 5/12 + 11/18

    10/60 + 11/18

    3/18 + 11/18 = 14/18 = 7/9

  • 1 decade ago

    These are really easy, you just need to find a COMMON DENOMINATOR

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