40 - 27 = 13
-2x -11y - 13
17/27 - 13/27 = 4/27 or four twenty-sevenths. Expressed as a decimal, this is equal to 0.148 recurring (that is, 0.148148148...)
27
(13/16) - (1/4) / (-63/4) = (13/16) - (1/4) / (-27/4) = (13/16) + (1/4) / (27/4) .. .. .. minus times minus = + = (13/16) + (1/4) * (4/27) .. .. .. division by a fraction is multiplication by its reciprocal = (13/16) + (1/27) = 367/432 Remember, the division must be performed first.
28 minus 27 is 1.
4370 minus 27 is 43.
27. 2+7=9 then minus 4. Next is plus 8 minus 3. Plus 9 minus 2. Plus 10 (27). Next is minus 1 which would be 26.
9/10 - 13/30 = 27/30 - 13/30 = 14/30 = 7/15
-13 minus -13 is 0.
50 - 27 - 14 = 9
27 - 9 - 6 = 12