(1:1)(3:1) 这种比例的乘法怎么算啊 还有(3:1)(1:1)

2025-01-01 17:28:14
推荐回答(3个)
回答1:

(1:1)(3:1)
=1×3
=3

(3:1)(1:1)
=3×1
=3

回答2:

(3:1)✘(1:1)=3:1:3:1

回答3:

??????,举个例