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Write a multiplication formula and a division formula according to 1.8 △ 0.9 = 2______ ，______ ．
Because 1.8 △ 0.9 = 2, so 0.9 × 2 = 1.8, 1.8 △ 2 = 0.9; so the answer is: 0.9 × 2 = 1.8, 1.8 △ 2 = 0.9
What is two and one-third divided by fourteen fifths
Hello, it's five out of two
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