Найдите значение выражения:
1)3 3/4×1 2/3+3 3/4×1/3
2)1 3/8×3/5-3/5×1/8
3)1 2/5×2 5/7-1 2/5×3/14
4)1/9×1 5/6+1 1/6×1/9
ПЖ ПОМОГИТЕ ДАМ 15 БАЛЛОВ
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