问题描述:
5/18×4×9/10
最佳答案:
解法一:
5/18×4×9/10
=5/10×4×9/18
=1/2×4×1/2
=1/4×4
=1
解法二:
5/18×4×9/10
=5/18×9/10×4
=1/4×4
=1
? ?
问题描述:
5/18×4×9/10
解法一:
5/18×4×9/10
=5/10×4×9/18
=1/2×4×1/2
=1/4×4
=1
解法二:
5/18×4×9/10
=5/18×9/10×4
=1/4×4
=1
? ?