Răspuns :
Răspuns:
11/25+9/25=20/25
91/25+9/25=100/25
25/25+9/25=34/25
9/25+9/25=18/25
Explicație pas cu pas:
Răspuns:
9/25 + 11/25 = (9+11)/25 = 20/25 = 4/5
9/25 + 91/25 = (9+91)/25 = 100/25 = 4
9/25 + 25/25 = (9+25)/25 = 34/25
9/25 + 9/25 = (9+9)/25 = 18/25