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Can someone explain how to simplify the complex rational expression: 1/7-8/3/1/y+8/9?

April 26, 2017complex explain expression Mathematics simplify

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Can someone explain how to simplify the complex rational expression: 1/7-8/3/1/y+8/9?

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simplify the numerator first 1/y – 8/3 ( 3 – 8y ) / 3y that is the numerator simplified then do the denominator 1/7 + 8/9 ( 9 + 56 ) / 63 65 / 63 and that is the denominator the rule for division of fractions is numerator times the reciprocal of the denominator ( 3 – 8y ) / 3y * 63 / 65 21 ( 3 – 8y ) / 65y ( 63 – 168 y ) /65y