4/7:2.1先化简,再求比值。
数学答案 2023-04-27
问题描述:
4/7:2.1.
最佳答案:
解法一:
4/7:2.1
=4÷7÷2.1
=4÷(7x2.1)
=4÷14.7
=40÷147
=40:147
解法二:
4/7:2.1
=(4/7×70):(2.1×70)
=40:147
解法三:
4/7:2.1
=4/7:21/10
=40:147
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数学答案 2023-04-27
问题描述:
4/7:2.1.
最佳答案:
解法一:
4/7:2.1
=4÷7÷2.1
=4÷(7x2.1)
=4÷14.7
=40÷147
=40:147
解法二:
4/7:2.1
=(4/7×70):(2.1×70)
=40:147
解法三:
4/7:2.1
=4/7:21/10
=40:147