Question

вичислить
прошу огромное пасибо

Answer 1

4·(2 1/2 + 1 3/4) - (6 2/3 + 4 4/5) : 2 = 12 11/15
1) 2 1/2 + 1 3/4 = 5/2 + 7/4 = 10/4 + 7/4 = 17/4
2) 4 · 17/4 = 17
3) 6 2/3 + 4 4/5 = 20/3 + 24/5 = 100/15 + 72/15 = 172/15
4) 172/15 : 2 = 172/15 · 1/2 = 86/15 = 5 11/15
5) 17 - 5 11\15 = 12 11/15