Question

Aduceți la numitor comun : 5 supra 12 si 2 supra 15 ; 5 supra 6 si 2 supra 9 ; 1 supra 8 si 7 supra 10 ; 1 supra 2 + 1 supra 4 si 1 supra 8 ; 2 supra 5 + 3 supra 2 si 7 supra 10
Dau Coroana !!

Answer 1

5/12CU15=CU75/180
2/15CU12=CU24/180

5/6CU3=CU15/18
2/9CU2=CU4/18

1/8CU10=CU10/80
7/10CI 8=CU56/80

1/2CU4=CU4/8
1/4CU2=CU2/8
1/8 RAMANE
4/8+2\8+1\8=7\8

2\5CU2=CU4\10
3/2CU5=CU15\10
7/10 RAMANE

4\10+15\10+7\10=\26\10