求25和30 24和30 39和78 60和84 126和60 45和75 12和24 12和14的最小公倍数（每题都要

5 | 25 30
| 5 6
5x5x6 = 150
2| 24 30
3| 12 15
| 4 5
2x3x4x5 =120
3 | 39 78
13| 13 26
| 1 2
3x13x1x2 = 78
4| 60 84
3| 15 21
| 5 7
4x3x5x7=420
2|126 60
3|63 30
|21 10
2x3x21x10 = 1260
5|45 75
3|9 15
| 3 5
5x3x3x5=225
12|12 24
| 1 2
12x1x2 = 24
2|12 14
|6 7
2x6x7= 84

150；120；78；420；1260；225；24；84