1) 9 \ 2 * 12 \ 7 = 54 \ 7
2) 54 \ 7 - 47 \ 9 = 486 - 329 \ 63 = 157 \ 63
157 \ 63 * 3 \ 8 = 157 \ 168
1) 9 \ 2 * 12 \ 7 = 54 \ 7
2) 54 \ 7 - 47 \ 9 = 486 - 329 \ 63 = 157 \ 63
157 \ 63 * 3 \ 8 = 157 \ 168