It is 2 and 3 over 8.
10 - 12 = -2
12/15 - 10/15 = 2/15
7/12
12 - 2 = 10
2/3 minus 12/15 is -2/15
12 2/3 - 2 2/3 = 10 As the fractions are equal, they cancel out. This leaves 12 minus 2 which is 10
2/5 = 4/10 minus 1/10 is 3/10
10-(-2)=10+2=12.
10 minus -2 is 12.
(6 x 10-2) / (1 x 10-12) = 6 x 10(-2+12) = 6 x 1010
It is: 12-5/12-1/12 = 11 and 1/2 or 11.5