Question

分数乘除法口算及答案

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Answer 1

4/9×4/3=16/27 1/3×1/3=1/9 1/2×1/3=1/6
2/7×7/2×2/7=2/7 21/25×25/42=1/2 4/5×3/4=3/5
8/7×1/2=4/7 7/4×1/4×1/2=7/32
1/7×1/2=1/14 2/3×5/6=5/9 1/5×3/8=3/40
3/5×5/8=3/8 6/7×3/2=9/7 5/6×8/3=20/9
4/11×3/4=3/11 4/9×3/8=1/6 5/3×1/5=1/3
4/3×4/9=16/27 1/3×1/2=1/6 2/7×1/2＝1/7
41/12×1/4=41/48 1/4×3/16=3/64
1/12×9/4=3/16 75/8×1/5=15/8
7/12×1/9＝ 7/108 2/3×7/3＝14/9
3/8×9/4＝27/32 5/3×3/5＝1
4/5×5/8＝1/2 7/9×9/7＝1
2/3×1/7=2/21 1/4×3/50=3/200
4/5×1/2= 2/5 2/3×29/8=29/12
3/2×7/9=7/6 2/3×3/4=1/2
5/6×1/3=5/18 6/5×1/6 =1/5
2/1×7/2=7 3/2×1/3=1/2
1/22×4/5=2/55 5/6×8/3=20/9
4/11×3/4=3/11 2/3×5/6=5/9
1/5×3/8=3/40 3/5×5/8=3/8
8/7×1/2=4/7 7/4×1/2=7/8
1/7×1/2=1/14 2/3×5/6=5/9
8/7×3/2=12/7 5/12×1/9＝5/108
7/4××1/2=7/8 1/7×1/2=1/14
2/3×5/6=5/9 2/3×1/2=1/3
2/3×5/6=5/9 1/5×3/8=3/40
2/3×7/3＝14/9 8/7×1/2=4/7
1/7×1/2=1/14 2/3×5/6=5/9
1/5×3/8=3/40 3/5×5/8=3/8
5/6×1/3=5/18 6/5×1/6 =1/5
2/1×7/2=7 3/2×1/3=1/2
1/22×4/5=2/55 5/6×8/3=20/9
4/11×3/4=3/11 2/3×5/6=5/9
1/5×3/8=3/40 3/5×5/8=3/8
4/3×4/9=16/27 1/3×1/2=1/6
1/7×5/2=5/14 1/3×5/6=5/18
1/5×3/8=3/40 3/5×5/8=3/8
6/7×3/2=9/7 5/6×8/3=20/9
4/11×3/4=3/11 4/9×3/8=1/6
5/3×1/5=1/3 4/3×4/9=16/27
1/3×1/2=1/6 2/7×1/2＝1/7
6/7×3/2=9/7 5/6×8/3=20/9
4/11×3/4=3/11 3/5×5/8=3/8
8/7×1/2=4/7 7/4×1/2=7/8
1/7×1/2=1/14 2/3×5/6=5/9

Answer 2

1×1=1 2×2=4

Answer 3

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