78/9 : 2/3 = 13/1

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78/9 : 2/3 = 12?

Guest Oct 25, 2015

edited by Guest Oct 25, 2015

CPhill · Answer 1 · 2015-10-25T04:18:09

78/9 : 2/3 = 12 ?

Substituting, we have

13 / 1 = 12 / ? cross-multiply

13? = 12 divide both sides by 13

? = 12/ 13