人教版六上数学课本第12页练习二答案
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1: 8/3 6/7 3 11/3 5/6
2: 1/2×5=5/7
3: 2/15 2/3 1/6 3/28 2 3/10 6/11 1/5
4: 7/100×50=7/2﹙米﹚ 7/100×100=7﹙m﹚
5: 1/4 8/15 9/16
6: 3/4×2=3/2﹙dm﹚ 3/4×1/2=3/8﹙dm﹚
3/4×2/3=1/2﹙dm﹚
7: < > < =
8: 3/2×1/5=3/10﹙kg﹚
9: 不对 4×4/7=16/7 不对7/10×6/5=21/25
10 ① 4/5×1/2=2/5﹙kg﹚ ②7/12×4/7=1/3﹙小时﹚ |
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