(42*124+2430):38*202-(3008:94+527*8):72=
1)124*42=5208 2)5208+2430=7638 3)3008:94=32 4)527*8=4216 5)4216+32=4248 6)7638:38=201 7)201*202=40602 8)4248:72=59 9)40602-59=40543
0,25х<1=х<1:0,25=х<4
<span>0,7х>1,4=х>1,4:0,7=х>2.</span>
1. - 7/5
2. - 7/7 - 2/7 = 5/7
3. - 6 3/5
4. - 2 2/11
5. - 2 5/7
6. - 2 8/8
7. - 3 6/7
8. - 6 = 5+1 = 5 3/3 +1/3 =5 4/3 - 2 1/3 = 3 3/3
9. - 6 21/23
10. - 5=4+1 = 4 11/11+5/11=4 16/11 - 5/11 = 4 11/11
11. - 7=6+1 = 6 7/7+3/7 = 6 10/7 - 2 3/7 = 4 7/7
12. - 5 12/13
13. - 3 3/5
14. 4=3+1 = 3 6/6+1/6 = 3 7/6 - 1/6 = 3 6/6
15. - 8 3/14