Răspuns:
Salutare!
Explicație pas cu pas:
3×2/5=6/5
5×4/3=20/3
8×2/1=16/1=16
2÷7/2=2×2/7=4/7
3/5×4=12/5
7/8×6=42/8
3/1×3=9/1=9
7/2÷2=2/7×2=4/7