Question

59分之17乘以63分之12加63分之17乘以59分之51怎么例算

Answer 1

17/59×12/63+17/63×51/59
=17×1/59×(12/63+51/63)
=17/59×1
=17/59

Answer 2

答：依题意得
17/59×12/63+17/63×51/59
＝17/59+12/63+51/63×
17/59
＝17/59×（12/63+51/63）
＝17/59×1
＝17/59。