你好
4÷2/3-0.6
=4×3/2-6
=6-6
=0
2/9*0.375÷6/73
=2/9×3/8×73/6
=73/72
(1-1/100*60)÷2/5
=(1-3/5)÷2/5
=2/5÷2/5
=1
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4÷2/3-0.6
=4×3/2-0.6
=6-0.6
=5.4
2/9*0.375÷6/7
=2/9×3/8×7/6
=7/72
(1-1/100*60)÷2/5
=(1-3/5)÷2/5
=2/5÷2/5
=1