Question

Va rog urgent!! De la a) la e)!!
Dau coroana!!!!!​

Answer 1

1. [1\2+ 4/9- 1/4]÷ 1/216
2. 1/2+4/9=17/18
3. 17/18-1/4=25/36
4. 25/36÷1/216=150

Urmatotul:

{[1\16-1/64]÷5/8}÷ [(8/5- 6/7)÷(3/5+ 1/7)]

1. 1/16- 1/64=3/64
2. 3/64÷ 5/8=3/40
3. (8/5-6/7)=26/35×26/35×26/35=17576/42875
4. (3/5+1/7)=26/35×26/35=676/1225
5. 17576/42875÷676/1225=26/35
6. 3/40÷26/35=21/208

Urmatorul:

1. 0,4÷0,8=0,5
2. 3÷1,2=2,5
3. 1-0,5=0,5
4. 0,5+2,5=3
5. 7/3×42/49=2
6. 2,6-2=0,6=3/5
7. 3/5×10/7=6/7
8. 3÷6/7=7/2
9. 2-0,4=1,6
10. 4÷1,6=2,5
11. 2,5+1=3,5
12. 1/1-2/3=1/3
13. 2/1÷1/3=6
14. 7-6=1

Urmatorul:

1. 15/54-4/18=1/18
2. 14/3×1/18=7/27
3. 10/7+1/14=3/2
4. 3/2×7/3=7/2
5. 7/27÷7/2=2/27

Urmatorul:

1. 0,28+0,16=0,44=11/25
2. 11/25÷121/5625=11/225
3. 1÷11/225=225/11
4. 225/11-2/3=653/33
5. 653/33×7/3=4571/99=46 17/99