Question

СРОЧНО! 20 БАЛЛОВ! Пожалуйста! С объяснениями​

Answer 1

1) 5 5/9+ 3 1/6- 6 4/27= 5 30/54+ 3 9/54- 6 8 /54= 8 39/54- 6 8/54= 2 31/54.

2) 1 5/7+ 3 11/14- 2 1/4= 1 20/28+ 3 22/28- 2 7/28=4 42/28- 2 7/28=2 35/28=    = 3 7/28= 3 1/4.

3) 12 13/48- (9 17/32- 4 5/24)= 12 13/48- 9 17/32+ 4 5/24=  

= 12 26/96- 9 51/96- 4 20/96= 11 122/96- 9 51/96+4 20/96= 2 71/96+ 4 20/96=

= 6 91/96

4) 18 - 10 18/35- 3 9/28- 2 3/20= 7 17/35- 3 9/28- 2 3/20= 7 68/140- 3 45/140-

2 21/140= 4 23/140- 2 21/140= 2 2/140= 2 1/70.