Question

√747( б) Покажите,что данные дроби можно сократить на 8.

Answer 1

а)27*5/34*18 = 3*5=34*2 = 15/68 
  63*35/17*54 = 7*35/17*6 = 245/102 = 2 целые 41/102
  6*15/12*48 = 90/576 = 10/64 = 5/32
  94*36/33*42 = 94*36/33*42 = 3384/1386=376/154 = 2 целые 34/77
б)31*16/42*20 = 31*2/5,25*20 = 62/105 
  4*28/48*3 = 4*3,5/6*3 = 14/18 = 7/9
  32*71/44*142 = 4*71/5,5*142 = 284/781 = 4/11
  10*6*14/8*15 = 10*84/8*15 = 10*10,5/1*15 = 105/15 = 7