(3/16+а)-3/8, а=5/12

Question

(3/16+а)-3/8, а=5/12

Answer 1

(3/16+а)-3/8, при а=5/12
(3/16+5/12)-3/8=(9/48+20/48)-18/48=29/48-18/48=11/48

Answer 2

(3/16+а) -3/8 , при а =5/12
(3/16+ 5/12) - 3/8= 11/48
(9/48+20/48)- 3/8= 11/48
29/48- 3/8= 11/48
29/48- 18/48= 11/48
11/48= 11/48.