通分根据分数(式)的基本性质,把几个异分母分数(式)化成与原来分数(式)相等的同分母的分数(式)的过程,叫做通分。
1 |
ab2 |
a |
2bc |
2 |
3a2c2 |
b |
2a2 |
4a |
3bc |
a |
5c2 |
4a |
5b2c |
3c |
2a2b |
7b |
10ac |
1 | ||
4
|
b |
2ac |
a |
6b2c |
b |
3a2c2 |
c |
4ab |
4 |
3x |
3 |
2y |
1 |
ab |
1 |
ab2 |
a |
3a |
4 |
2a |
1 |
4a2 |
A.a | B.12a | C.8a2 | D.12a2 |
1 |
xy |
y |
2x3 |
1 |
3xy2z |
3 |
2x2y |
1 |
6xy2 |
y |
2x |
3 |
4x2y |
2 |
3xy2 |
1 |
x |
1 |
y |
1 |
x+y |
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