Выполните действия: 2/7 + 1/3 - 1/4; 5/8 - (1/4+1/3) ПОМОГИГИ

Question

Выполните действия:
2/7 + 1/3 - 1/4;
5/8 - (1/4+1/3)



ПОМОГИГИ

Answer 1

2/7 + 1/3 - 1/4 = 24/84 + 28/84 - 21/84 = 31/84
5/8 - (1/4 + 1/3) = 5/8 - (3/12 + 4/12) = 5/8 - 7/12 = 15/24 - 14/24 = 1/24