九分之七乘以五分之三除以九分之七乘以五分之三

2025-03-20 08:48:30
推荐回答(1个)
回答1:

7/9×3/5÷7/9×3/5
=7/9÷7/9×3/5×3/5
=1×3/5×3/5
=9/25