14/39减11/52等于几?
14/39减11/52等于几?
日期:2022-02-14 03:24:46 人气:1
"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"
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"