4个回答
展开全部
一、
3/5×1/6 ×5=1/2
2/3×1/4×3=1/2
4/9 ×5×18=40
5/7×16×21/5=48
5/13×4/7×14=40/13=3又1/13
2/5 ×4×3/4=6/5=1又1/5
6×(2/18 ×7/30)=7/45
4/17×(125×34)=1000
8/9×4/27×27=32/9=3又5/9
3/5×1/6 ×5=1/2
2/3×1/4×3=1/2
4/9 ×5×18=40
5/7×16×21/5=48
5/13×4/7×14=40/13=3又1/13
2/5 ×4×3/4=6/5=1又1/5
6×(2/18 ×7/30)=7/45
4/17×(125×34)=1000
8/9×4/27×27=32/9=3又5/9
追答
二、
(5/6-5/9)×18/5
=5/6×18/5-5/9×18/5
=3-2
=1
37×3/35
=(35+2)×3/35
=35×3/35+2×3/35
=3+6/35
=3又6/35
9/5×11.6+18.4×9/5
=9/5×(11.6+18.4)
=9/5 ×30
=54
第二页一
4/27×1.2
=4/27×6/5
=8/45
2.6×12/13=2.4
0.875×16/7
=7/8×16/7
=2
4/3×2.1=2.8
5.6×9/14=3.6
2.4×2/3=1.6
2/9×8.1=1.8
7.2×3/8=2.7
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