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:2024/07/02 01:00:50
![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=?](/uploads/image/z/131035-67-5.jpg?t=51.25%C3%974%2F5-61.2%C3%975%2F6%2B71%E5%8F%881%2F6%C3%B77%2F6%3D%3F%E7%94%A8%E9%80%92%E7%AD%89%E5%BC%8F%E8%AE%A1%E7%AE%97%E8%BF%98%E6%9C%89%2C%E3%80%9040%E5%8F%881%2F2%EF%BC%8D%EF%BC%8818.75%EF%BC%8D1%C3%B78%2F15%EF%BC%89%C3%972%E3%80%91%C3%B727%2F40%EF%BC%9D%3F)
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