Răspuns :
supraunitare: 26 supra 10 - 16 supra 10
subunitare: 9 supra 10 - 3 supra 10
subunitare: 9 supra 10 - 3 supra 10
a ) 9/10 - 3/10 = 6/10
b) 24/10 - 18/10 = 6/10
c) 25/10 - 10/10 - 9/10 = 6/10
b) 24/10 - 18/10 = 6/10
c) 25/10 - 10/10 - 9/10 = 6/10