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Mathematics 13 Online
OpenStudy (anonymous):

I need help with another question!!! Which pair of fractions is equivalent to this pair? 2/9 and 3/7 2/63 3/63 7/63 9/63 14/63 27/63 18/63 21/63

OpenStudy (anonymous):

I know the least common denominator is 63 but idk how to do the rest

OpenStudy (♪chibiterasu):

heres a trick multiply the numerator by the denominator

OpenStudy (♪chibiterasu):

of the ratio

OpenStudy (♪chibiterasu):

what number do you get

OpenStudy (♪chibiterasu):

do the same for 3/7

OpenStudy (♪chibiterasu):

doing that gives the numerator of the big number

OpenStudy (anonymous):

the last one is the answer

OpenStudy (♪chibiterasu):

im tired so i dont remember the terms lol

OpenStudy (♪chibiterasu):

Please don't give direct answers, it's against our CoC: http://inquus.org/code-of-conduct ty <3

OpenStudy (anonymous):

Thanks both

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