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OpenStudy (anonymous):
What is a common denominator for 6, 7, and 5? I have to add 1/6 + 5/7 + 4/5. Super easy, just not thinking properly...
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OpenStudy (anonymous):
the common denominator is 210 since you multiply all the denominators together 6x5x7=210. so then you should have 1(5x7)/210 + 5(6x7)/210 + 4(5x6)/210
OpenStudy (anonymous):
this should give y ou 35/210 + 5(6x5)/210 my bad on the previous error which is 150/210 + 4(6x7)/210 again sorry which is 168/210
OpenStudy (anonymous):
35+ 150+ 168= 353/210 should be your answer
OpenStudy (anonymous):
ooh got it. thanks!
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