问题
解答题
84:63. 57:0.36. |
答案
(1)
:5 6 7 10
=(
×30):(5 6
×30)7 10
=25:21
(2)84:63
=(84÷21):(63÷21)
=4:3
(3)57:0.36
=(57×100):(0.36×100)
=5700:36
=(5700÷12):(36÷12)
=475:3
84:63. 57:0.36. |
(1)
:5 6 7 10
=(
×30):(5 6
×30)7 10
=25:21
(2)84:63
=(84÷21):(63÷21)
=4:3
(3)57:0.36
=(57×100):(0.36×100)
=5700:36
=(5700÷12):(36÷12)
=475:3