trebuie sa înmulțesc astea...va rog ajutatima

3×2/5=6/5
7×1/4=7/4
3/5×11=33/5
3/4×14=42/4
14×5/21=70/21
2×2 1/3=14/3
3 2/5 ×6=102/5
6×5 2/4=132/4
2 1/7×4=60/7
8×2 3/16=280/16