解:48又4/21×1/23等于( 44/21 ) ∵已知需求出48又4/21×1/23等于多少 X × Y = X * Y = Z ∴48又4/21 × 1/23 = (48×21+4)/21 × 1/23 = 1012/21 ×1/23 = (44×23)/21 × 1/23 = 44/21 答:48又4/21×1/23等于44/21
等于44/21