Сократите дроби во всех вариантах на фото: А, Б, В, Г, Д, Е.

Правило: числитель и знаменатель дроби делим на их общий делитель.

А: 1/5 = 1/5; 7/16 = 7/16; 3/14 = 3/14; 1/7 = 1/7; 2/5 = 2/5; 1/3 = 1/3; 3/10 = 3/10; 1/12 = 1/12; 3/8 = 3/8; 1/4 = 1/4; 5/14 = 5/14; 3/16 = 3/16; 1/6 = 1/6; 3/7 = 3/7; 5/12 = 5/12.

Б: 1/7 = 1/7; 2/15 = 2/15; 1/9 = 1/9; 3/16 = 3/16; 1/8 = 1/8; 1/4 = 1/4; 3/20 = 3/20; 2/9 = 2/9; 1/6 = 1/6; 5/21 = 5/21; 4/15 = 4/15; 5/24 = 5/24; 1/5 = 1/5; 5/18 = 5/18; 7/30 = 7/30.

В: 2/3 = 2/3; 1/6 = 1/6; 3/10 = 3/10; 23/30 = 23/30; 2/7 = 2/7; 3/5 = 3/5; 4/15 = 4/15; 3/8 = 3/8; 7/10 = 7/10; 19/25 = 19/25; 4/7 = 4/7; 13/20 = 13/20; 26/35 = 26/35; 3/4 = 3/4; 11/15 = 11/15.

Г: 1/2 = 1/2; 3/10 = 3/10; 3/4 = 3/4; 5/12 = 5/12; 5/7 = 5/7; 13/18 = 13/18; 2/3 = 2/3; 4/5 = 4/5; 1/6 = 1/6; 7/10 = 7/10; 11/14 = 11/14; 5/8 = 5/8; 7/12 = 7/12; 4/9 = 4/9; 19/24 = 19/24.

Д: 1/2 = 1/2; 3/8 = 3/8; 1 1/16 = 17/16; 5/6 = 5/6; 1/4 = 1/4; 7/10 = 7/10; 5/8 = 5/8; 11/16 = 11/16; 1/6 = 1/6; 13/24 = 13/24; 7/8 = 7/8; 2 1/3 = 7/3; 5/10 = 1/2; 11/20 = 11/20; 3/4 = 3/4; 1 19/32 = 51/32.

Е: 3/10 = 3/10; 1/6 = 1/6; 2/7 = 2/7; 9/25 = 9/25; 3/4 = 3/4; 1 2/15 = 17/15; 3/35 = 3/35; 2/3 = 2/3; 2 4/50 = 2 2/25; 1/2 = 1/2; 1 4/5 = 9/5; 5/8 = 5/8; 11/20 = 11/20; 1/25 = 1/25; 1 1/5 = 6/5.

Ответ: все дроби уже несократимы, кроме смешанных чисел, которые переведены в неправильные дроби, и дробей 5/10 = 1/2, 2 4/50 = 2 2/25.