вычислите дроби:
а) 1/10 + 7/700,
б) 21/100+ 3/20,
в) 35/ + 9/10,
г) 2/3 + 5/6.
1/10+7/700=70/700+7/700=77/700
21/100+3/20=21/100+15/100=36/100=9/25
2/3+5/6=4/6+5/6=9/6=1 3/6=1 1/2
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1/10+7/700=70/700+7/700=77/700
21/100+3/20=21/100+15/100=36/100=9/25
2/3+5/6=4/6+5/6=9/6=1 3/6=1 1/2