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16 May, 19:03

Write these fractions in least common denominator2/5x+15y 1/2x+6y

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  1. 16 May, 19:16
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    Look at deonomators

    assuming that the deonomenators are 5x+15y and 2x+6y

    find their LCM

    factor

    5x+15y=5 (x+3y)

    2x+6y=2 (x+3y)

    LCM=10 (x+3y) = 10x+30y

    multiply 2 / (5x+15y) by 2/2=4 / (10x+30y)

    multiply 1 / (2x+6y) by 5/5=5 / (10x+30y)

    if we add them

    9 / (10x+30y)
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