Posted by kristeen on Wednesday, November 9, 2011 at 6:26am.
what must be added to 6 3/5 to produce 3 5/6?

math  Anonymous, Wednesday, November 9, 2011 at 6:56am
6 3 / 5 = 6 * 30 / 30 + 3 * 6 / 30 =
180 / 30 + 18 / 30 = 198 / 30
3 5 / 6 = 3 * 30 / 30 + 5 * 5 / 30 =
90 /30 + 25 / 30 = 115 / 30
6 3 / 5 + x = 3 5 / 6
198 / 30 + x = 115 / 30
x = 115 / 30  198 / 30
x = 83 / 30

math  Reiny, Wednesday, November 9, 2011 at 9:44am
33/5 + x = 23/6
times 30
198 + 30x = 115
30x = 83
x = 83/30
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