Приведите к наименьшему общему знаменателю дроби : 1/2 и 1/3; 2/5 и 3/4; 3/16 и 2/3; 1/4 и 9/25.
7/15 и 5/9; 1/6 и 3/10; 5/12 и 7/15; 7/20 и 7/8.
7/15 и 5/9; 1/6 и 3/10; 5/12 и 7/15; 7/20 и 7/8.
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2/5 и 3/4... 8/20 и 15/20
3/16 и 2/3... 9/48 и 32/48
1/4 и 9/25... 25/100 и 36/100
7/15 и 5/9.. 21/45 и 25/45
1/6 и 3/10... 6/30 и 9/30