4/7 + 18/21 = 210/147 or 10/7 or 13/7
It is: 5/18 plus 4/9 = 13/18
1.22222, or 22 over 18 (22/18), or 1 and 4 over 18 (1 4/18)
The result obtain from the equation 4 plus -1 -21 is -18.
18 + 79/4 = 151/4 or 373/4
2/12 + 4/18 = 7/18
109 you can plus like this: (19+1)+20+20+(1+1+18)+4+25
1/4 + 18 = 181/4 = 18.25 or 73/4
4/9 x 2/2 = 8/18 5/18 + 8/18 = 13/18
4/9
4/9 = 8/18 1/2 = 9/18 Total: 17/18
The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.
26/63