47/51÷31+4/51×1/31 1/5×37%+0.63×20%+45% 98%×1/4÷2%÷1/4 7/2÷4
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/10/08 22:21:20
47/51÷31+4/51×1/31 1/5×37%+0.63×20%+45% 98%×1/4÷2%÷1/4 7/2÷4+60×25% (/代表分数线哦)
47/51÷31+4/51×1/31
=47/51×1/31+4/51×1/31
=(47+4)/51*31
=51/51*31
=1/31
1/5×37%+0.63×20%+45%
=0.2*0.37+0.63*0.2+0.45
=0.2*(0.37+0.63)+0.45
=0.2*1+0.45
=0.65
98%×1/4÷2%÷1/4
=98%*1/4*100/2*4
=49
7/2÷4+60×25%
=7/2*1/4+60*1/4
=1/4*(3.5+60)
=63.5*1/4
=15.875
=47/51×1/31+4/51×1/31
=(47+4)/51*31
=51/51*31
=1/31
1/5×37%+0.63×20%+45%
=0.2*0.37+0.63*0.2+0.45
=0.2*(0.37+0.63)+0.45
=0.2*1+0.45
=0.65
98%×1/4÷2%÷1/4
=98%*1/4*100/2*4
=49
7/2÷4+60×25%
=7/2*1/4+60*1/4
=1/4*(3.5+60)
=63.5*1/4
=15.875
47/51÷31+4/51×1/31 1/5×37%+0.63×20%+45% 98%×1/4÷2%÷1/4 7/2÷4
用自己喜欢的方法计算.51分之47÷31+51分之4×31分之1= 5分之1×37%+0.63×20%=
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