Question

Efectuați calculele a 2 supra 7 plus 5 supra 7 b 3 supra 11 plus 6 supra 11 plus 2 supra 11 c 1 supra 2 plus 1 supra 3 plus 1 supra 6 8 supra 13 minus 9 supra 13 plus 1 supra 13 e 5 supra 6 minus 1 supra 4 minus 5 supra 12 B1 supra 12 plus 5 supra 6 minus 3 supra 4​

Answer 1

2, 7, 8, 789, 78, 56, 929, 12020 sper ca e de folos

Answer 2

Răspuns:

Explicație pas cu pas:

Efectuați calculele

a) 2/7 + 5/7=(2+5)/7=7/7=1

b) 3/11 + 6/11 + 2/11 =(3+6+2)/11=11/11=1

c) 1/2 + 1/3 + 1/6=(1·3+1·2+1)/6=6/6=1

) 8/13 - 9/13 + 1/13 =(8-9+1)/13=0/13=0

e) 5/6 - 1/4 - 5/12=(5·2-1·3-5)/12=(10-3-5)/12=2/12=1/6

) 1/12 + 5/6 - 3/4=​(1+5·2-3·3)/12=(1+10-9)/12=2/12=1/6