2M-N分之3与4M²-4MN+N²分之2MN 通分要详细点

2M-N分之3与4M²-4MN+N²分之2MN 通分要详细点
2M-N分之3与4M²-4MN+N²分之2MN 通分要详细点

2M-N分之3与4M²-4MN+N²分之2MN 通分要详细点
3/(2M-N)=3(2M-N)/(2M-N)²
2MN/(4M²-4MN+N²)=2MN/(2M-N)²
如果不懂,请Hi我,祝学习愉快!