2890除以(5/6+7/8+7/10)除以(5/6+7/8+7/10)
问题描述:
2890除以(5/6+7/8+7/10)除以(5/6+7/8+7/10)
答
2890除以(5/6+7/8+7/10)除以(5/6+7/8+7/10)
= [2890/(5/6+7/8+7/10)]/(5/6+7/8+7/10)
= 2890/(5/6+7/8+7/10)*(5/6+7/8+7/10)
= 2890