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OpenStudy (anonymous):
2/7 divided by 4/21 = ????????
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myininaya (myininaya):
2/7 * 21/4
myininaya (myininaya):
[(2)(21)]/[7(4)]
myininaya (myininaya):
[2(3)(7)]/[7(2)(2)]
myininaya (myininaya):
3/2
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