140 ÷ 7/9 = 140/1 * 9/7 = 180
300 ÷ 3/10 = 300/1 * 10/3 = 1000
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140 ÷ 7/9 = 140/1 * 9/7 = 180
300 ÷ 3/10 = 300/1 * 10/3 = 1000