а)4,103+7 7/25-1,3=4,103+7,28-1,3=11,383-1,3=10,083
б)1 5/12+1/4-0,8=1 5/12+3/12-4/5=1 5+3/12-4/5=1 2/3-4/5=1 10/15-12/15=15/15+10/15-12/15=25-12/15=13/15
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а)4,103+7 7/25-1,3=4,103+7,28-1,3=11,383-1,3=10,083
б)1 5/12+1/4-0,8=1 5/12+3/12-4/5=1 5+3/12-4/5=1 2/3-4/5=1 10/15-12/15=15/15+10/15-12/15=25-12/15=13/15