3.09减37/12除以1.15与1/12的和,所得的差的10%是多少?(把式子,和答案写出来)
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![3.09减37/12除以1.15与1/12的和,所得的差的10%是多少?(把式子,和答案写出来)](/uploads/image/z/5391413-53-3.jpg?t=3.09%E5%87%8F37%2F12%E9%99%A4%E4%BB%A51.15%E4%B8%8E1%2F12%E7%9A%84%E5%92%8C%2C%E6%89%80%E5%BE%97%E7%9A%84%E5%B7%AE%E7%9A%8410%25%E6%98%AF%E5%A4%9A%E5%B0%91%3F%EF%BC%88%E6%8A%8A%E5%BC%8F%E5%AD%90%2C%E5%92%8C%E7%AD%94%E6%A1%88%E5%86%99%E5%87%BA%E6%9D%A5%EF%BC%89)
3.09减37/12除以1.15与1/12的和,所得的差的10%是多少?(把式子,和答案写出来)
3.09减37/12除以1.15与1/12的和,所得的差的10%是多少?(把式子,和答案写出来)
3.09减37/12除以1.15与1/12的和,所得的差的10%是多少?(把式子,和答案写出来)
[3.09-37/12÷(1.15+1/12)]*10%
= [3.09-37/12÷37/30]*10%
= [3.09-5/2]*10%
=0.59*10%
=0.059
10/100*(3.09-37/12/(1.15+1/12))
=1/10*(3.09-37/12*60/74)
=1/10*(3.09-2.5)
=1/10*0.59
=0.059
[3.09-37/12÷(1.15+1/12)]*10%
=[3.09-37/12÷(115/100+1/12)]*10%
=[3.09-37/12÷(23/20+1/12)]*10%
=[3.09-37/12÷(69/60+5/60)]*10%
=(3.09-37/12÷74/60)*10%
=(3.09-37/12÷37/30)*10%
=(3.09-37/12*30/37)*10%
=(3.09-2.5)*10%
=0.59*0.1
=0.059
=3.09-37/12除以37/30
=3.09-5/2
=0.59
0.59*10%=0.059
3.09=309/100
1.15=23/20
原式=309/100-37/12除以(23/20+1/12)
=309/100-37/12×60/74
=309/100-5/2
=309/100-250/300
=59/100
最后=59/1000=0.059