1 ×2/3+6×4/15+8×17/45

Question

1 ×2/3+6×4/15+8×17/45

Answer 1

1×2/3+6×4/15+8×17/45=2/3+24/15+136/45=2/3+8/5+17/5=(10+24+51)/15=85/15=17/3=5·2/3