6.265
12 - (-7) = 19
19/20 minus 11/12 = 1/30
19 - 7 = 12
31 - 19 = 12
38 - 19 + 12 = 31
12.
-19
-19/12
13 + 12 - 6 - 2 (16 plus 12 minus 6 minus 2) (13 + 12 = 25. 25 - 6 = 19. 19 - 2 = 17!
6ft 5in
19 minutes 30 seconds minus 12 minutes 40 seconds = 6.833 minutes OR 6 minutes 50 seconds.
19/21 - 4/12 (4/12 = 1/3) = 12/21Convert the 1/3 into 7/21 and subtract.