Ответы на вопрос:
42 : 3 = (30 + 12) : 3 = 30 : 3 + 12 : 3 = 10 + 4 = 14 56 : 4 = (40 + 16) : 4 = 40 : 4 + 16 : 4 = 10 + 4 = 14 72 : 6 = (60 +12) : 6 = 60 : 6 + 12 : 6 = 10 + 2 = 12
99: 9 = (90+9): 9 = 10+1 = 11 171: 9 = (90+81): 9 = 10+9 = 19 128: 8 = (80+48): 8 = 10+6 = 16
1) 2 14/15=(30+14)/15=44/15 6 6/11=(66+6)/11=72/11 44/15 *72/11=4*72/15=288/15=19цел 3/15=19 цел 1/5 2)2 2/25=(50+2)/25=52/25 1 9/16=25/16 52/25*25/16=52/16=3цел 4/16= 3цел 1/4
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