14/39减11/52等于几?

日期:2022-02-14 03:24:46 人气:1

14/39减11/52等于几?

"先通分再相减.
通分:先找39和52的最小公倍数,用短除法求得最小公倍数是156
14/39-11/52
=14×4/39×4-11×3/52×3
=56/156-33/156
=23/156"
    A+
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