1. 12,24,36,48,60,72,84,96
2. а)90
б)24;90;106;252;34
3. :4 4,8,12,16,20,24,28,32,
36,40,44,48
:6 6,12,18,24,30,36,42,48
:16 16;32;48
НОД(4,6,16) 48
4. 7/12< 5/8
14/24< 15/24
3 7/9> 3 5/6
34/9>23/6
74/18>69/18
5. 2 1/4-1 1/2=9/4-3/2=
=9/4-6/4=3/4
3 4/7+1 2/3=25/7+5/3=
=75/21+35/21=110/21=
=5 5/2
2,5+1 3/40=
1 3/40=43/40=1075/1000=
=1,075
2,5+1,075=3,575
6. 1-(1/5+2/3)=1-(3/15+10/15)
=1-13/15=2/15 -осталось
7. 95/6< 127/8
380/24< 381/24
во 2 день
9. _9_ *_4_ = _1_= _1_
32 27 8*3 24
8,5*5/17=17/2*5/17=5/2=
=2 1/2
5 2/3*9=17/3*9=17*3=51
8,5=85/10=17/2