=(36÷4):(8÷4)
=9:2
=9/2
0.68:0.4
=68:40
=(68÷4):(40÷4)
=17:10
=1.7
2.7:3/5
=27/10:3/5
=27/10×5/3
=9/2
1/2:3/4
=1/2×4/3
=2/3
20min:1/4h
=20min:(1/4h×60)
=20min:15min
=20:15
=(20÷5):(15÷3)
=4:3
=4/3
75g:1000g
=75:1000
=75÷1000
=0.075
1公斤等于1千克75g=75÷1000=0.075千克
所以75g=0.075公斤
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