Question

A)22 supra 15 + 6 supra 3 b)3 supra 71 supra 11 C) 11 supra 18+ 25 supra 9 d)92 supra 5+5 supra 25 e)2 supra 13 + 11 supra 3 f)8 supra 9 +9 supra 81. Dau coroana

Answer 1

22/15+6/3=22/15+30/15=52/15
11/18+25/9=11/18+50/18=61/18
92/5+5/25=460/25+5/25=465/25=93/5
2/13+11/3=4/26+132/26=136/26=68/13
8/9+9/81=72/81+9/81=81/81=1