Question

ДОПОМОЖІТЬ БУДЬ ЛАСКА ДАЮ 50 БАЛІВ!!! а) 1 9/35*1 3/11+(6 2/9-5)
б) 1 3/20+2 1/5:(5 2/3+4 1/9)​

Answer 1

Ответ:

Пошаговое объяснение:

а) 1 9/35 * 1 3/11 + (6 2/9 - 5) = 2 37/45

1) 1 9/35 * 1 3/11 = 44/35 * 14/11 = 4/5 * 2 = 8/5

2) 6 2/9 - 5 = 1 2/9

3) 8/5 + 1 2/9 = 8/5 + 11/9 = 72/45 + 55/45 = 152/45 = 127/45 = 2 37/45

б) 1 3/20 + 2 1/5 : (5 2/3 + 4 1/9)​ = 1 3/8

1) 5 2/3 + 4 1/9 = 5 12/18 + 4 2/18 = 9 14/18 = 9 7/9

2) 2 1/5 : 9 7/9 = 11/5 : 88/9 = 11/5 * 9/88 = 9/40

3) 1 3/20 + 9/40 = 23/20 + 9/40 = 46/40 + 9/40 = 55/40 = 1 15/40 = 1 3/8

Answer 2

Пошаговое объяснение:

а

1) 1 9/35 * 1 3/11 = 44/35 * 14/11 = 4/5 * 2/1 = 8/5 = 1 3/5

2) 6 2/9 - 5 = 1 2/9

3) 1 3/5 + 1 2/9 = 1 27/45 + 1 10/45 = 2 37/45

б

1) 5 2/3 + 4 1/9 = 5 6/9 + 4 1/9 = 9 7/9

2) 2 1/5 : 9 7/9 = 11/5 : 88/9 = 11/5 * 9/88 = 1/5 * 9/8 = 9/40

3) 1 3/20 + 9/40 = 1 6/40 + 9/40 = 1 15/40 = 1 3/8