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
人气:347 ℃ 时间:2019-09-11 19:21:44
解答
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....
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