1.桃树数=28*(3/7)=12
2.(3/5)*60=36 (5/8)*1000=625
3.7:2=甲:(4/5)所以甲是14/5 则甲乙和为18/5
4.周长=3/4*4=3 面积=(3/4)*(3/4)=9/16
5.已修的=5/(5+4)=5/9
1.桃树数=28*(3/7)=12
2.(3/5)*60=36 (5/8)*1000=625
3.7:2=甲:(4/5)所以甲是14/5 则甲乙和为18/5
4.周长=3/4*4=3 面积=(3/4)*(3/4)=9/16
5.已修的=5/(5+4)=5/9