Răspuns:
2×3/5=3/5+3/5=6/5
Explicație pas cu pas:
20×7/5=7/5+7/5+7/5+7/5+7/5+7/5+7/5+7/5+7/5+7/5+7/5+7/5+7/5×7/5+7/5+7/5+7/5+7/5×8/5+7/5=7+7+7+7,,,,,+7/5=140/5 celelalte la fel
