Seudónimo Seudónimo

26-02-2016
Mathematics

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Solve 11 2/5 = q - 4 2/7 + 2 1/7

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mecca99 mecca99

26-02-2016

i turn the mixed numbers into decimals before doing anything else.
11 2/5----> 57/5----> 11.4
4 2/7----> 30/7----> 4.29
2 1/7----> 15/7----> 2.14

11.4=q-4.29+2.14
11.4=q-2.15
13.55= q

13.55 converted to a fraction is 13 11⁄20
q=13 11⁄20

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