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2/3÷1/2ï¼1/4Ã2/5
2/9ï¼1/2÷4/5ï¼3/8
10÷5/9ï¼1/6Ã4
1/2Ã2/5ï¼9/10÷9/20
5/9Ã3/10ï¼2/7÷2/5
3/14 Ã 2/3 + 1/6
8Ã5/6ï¼2/5÷4
1/2ï¼3/4Ã5/12Ã4/5
5/8÷5/4ï¼3/23÷9/11
1/5 Ã 2/3 + 5/6
5/3 Ã 11/5 + 4/3
45 Ã 2/3 + 1/3 Ã 15
7/19 + 12/19 Ã 5/6
101 Ã 1/5 â 1/5 Ã 21
7.2÷0.8-1.2Ã5
2/3÷1/2ï¼1/4Ã2/5
2ï¼6/13÷9/26ï¼2/3
2/9ï¼1/2÷4/5ï¼3/8
10÷5/9ï¼1/6Ã4
1/2Ã2/5ï¼9/10÷9/20
1/2ï¼1/4Ã4/5ï¼1/8
3/4Ã5/7Ã4/3ï¼1/2
23ï¼8/9Ã1/27÷1/27
1/2ï¼3/4Ã5/12Ã4/5
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