3/10÷20= 9÷3/4= 5/8×1/4= 6/11×5/12= 5/9-1/6= 2/3÷4/7= 1/8+3/4= 5/6÷5/7= 先化简再求比值 21:491.6:2.4 2.4/8 3/7:2/99/7-8/19-11/19 5/12÷8+1/8×7/12 1/2÷[1/5×[﹙1/2+3/4﹚]解方程6X-2.4=0.36 5X÷15=15 8X-0.5X=30
3/10÷20= 9÷3/4= 5/8×1/4= 6/11×5/12= 5/9-1/6= 2/3÷4/7= 1/8+3/4= 5/6÷5/7= 先化简再求比值 21:49
1.6:2.4 2.4/8 3/7:2/9
9/7-8/19-11/19 5/12÷8+1/8×7/12 1/2÷[1/5×[﹙1/2+3/4﹚]
解方程
6X-2.4=0.36 5X÷15=15 8X-0.5X=30
3/10÷20=3/10x20=3/200
9÷3/4= 9x4/3=12
5/8×1/4=5/32
6/11×5/12=30/132
5/9-1/6=10/18-3/18=7/18
2/3÷4/7= 2/3x7/4=7/6
1/8+3/4=1/8+6/8=7/8
5/6÷5/7=5/6x7/5=7/6
21:49=3:7
1.6:2.4=2:3
2.4/8=3/10
3/7:2/9=27:11
9/7-8/19-11/19=9/7-19/19=9/7-1=2/7
5/12÷8+1/8×7/12=5/96+7/96=12/96=1/8
1/2÷[1/5×[﹙1/2+3/4﹚]
=1/2÷(1/5×5/4)
=1/2÷1/4
=2
6X-2.4=0.36
6X=0.36+2.4
x=2.76÷6
x=0.46
5X÷15=15
5x=15x15
5x=225
x=45
8X-0.5X=30
7.5x=30
x=4
很高兴为您解答,祝你学习进步!
有不明白的可以追问!!!!!!
记得采纳哦!!!!
赞同1|评论(1)
这么多啊 多给点分哦!!!!!!!!!!!!
3/10÷20=3/2009÷3/4= 9x4/3=125/8×1/4=5/326/11×5/12=1/11x5/2=5/225/9-1/6=10/18-3/18=7/182/3÷4/7= 2/3x7/4= 14/12=7/61/8+3/4= 1/8+6/8= 7/85/6÷5/7=5/6x7/5=7/621:49=7x3:7x7=3:7=3/71.6:2.4=0.8x2:0....