51.25×4/5-61.2×5/6+71又1/6÷7/6=?用递等式计算还有,【40又1/2-(18.75-1÷8/15)×2】÷27/40=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 04:44:25
51.25×4/5-61.2×5/6+71又1/6÷7/6=?用递等式计算还有,【40又1/2-(18.75-1÷8/15)×2】÷27/40=?
51.25×4/5-61.2×5/6+71又1/6÷7/6=?用递等式计算
还有,【40又1/2-(18.75-1÷8/15)×2】÷27/40=?
51.25×4/5-61.2×5/6+71又1/6÷7/6=?用递等式计算还有,【40又1/2-(18.75-1÷8/15)×2】÷27/40=?
51.25×4/5-61.2×5/6+71又1/6÷7/6
=(50+5/4)×4/5-(60+6/5)×5/6+(70+7/6)×6/7
=50×4/5+5/4×4/5-60×5/6-6/5×5/6+70×6/7+7/6×6/7
=40+1-50-1+60+1
=(40+60-50)+(1-1+1)
=50+1
=51
[40又1/2-(18.75-1÷8/15)×2]÷27/40
=[40.5-(18.75-15/8)×2]×40/27
=[40.5-18.75×2+15/8×2]×40/27
=(40.5-37.5+3.75)×40/27
=(3+3.75)×40/27
=6.75×40/27
=27/4×40/27
=10
答案是 613/120
(要简算)51.25*5分之4+61.2*6分之5+71又6分之1除以6分之7
51.25×4/5-61.2×5/6+71又1/6÷7/6=?用递等式计算还有,【40又1/2-(18.75-1÷8/15)×2】÷27/40=?
51.25*4/5+64 1/5 *5/6+71 1/6除7/6
简便计算51.25*5分之4+61又5分之1*6分之5+71又6分之1/6分之7
4,5,6,7,
4 5 6 7
4 5 6 7
4、5、6、7,
4 5 6 7
4,5,6,7
4,5,6,7,
4,5,6,7
4,5,6,7
4,5,6,7
4、5、6、7、
4 5 6 7
4 5 6 7
4,5,6,7