Đáp án:
`F =((53/4-2 5/27-65/6).(230 1/25+46 3/4))/((24/7+3 1/3):(12.1/3-14 2/7))`
`= ((53/4 - 59/27 - 65/6. 5076/25 + 187/4))/((10/7 + 10/3):(37/3 - 100/7))`
`= (25/108 . 5076/25 + 187/4)/(100/21 : -41/21)`
`= (5076/108 + 187/4)/(-100/4)`
`= (47+187/4)/(-25)`
`= 375/4 : (-25)`
`= -15/4`
`G = ((-5/7-7/9+9/11-11/13).(3-3/4))/((10/21+14/27-6/11+22/39):(2-2/3))`
`= (-176/273 . 9/4)/(-3104/27027 : 4/3)`
`= (-132/91)/(2328/-27017)`
`~~ 16,834`