因为3/10×5/6=2/3×3/8
所以 3/10:2/3=3/8:5/6 3/10:3/8=2/3:5/6 5/6:2/3=3/8:3/10 5/6:3/8=2/3:3/10
2/3:3/10=5/6:3/8 2/3:5/6=3/10:3/8 3/8:3/10=5/6:2/3 3/8:5/6=3/10:2/3
共能写8个比例.
认真观察就会发现规律,根据是比例的基本性质.
因为3/10×5/6=2/3×3/8
所以 3/10:2/3=3/8:5/6 3/10:3/8=2/3:5/6 5/6:2/3=3/8:3/10 5/6:3/8=2/3:3/10
2/3:3/10=5/6:3/8 2/3:5/6=3/10:3/8 3/8:3/10=5/6:2/3 3/8:5/6=3/10:2/3
共能写8个比例.
认真观察就会发现规律,根据是比例的基本性质.