It is: 12-5/8 = 11 and 3/8 or 11.375
1 whole = 4 fourths 4 wholes = 16 fourths 4 wholes minus 2 fourths = 16 fourths minus 2 fourths = (16 - 2) fourths = 14 fourths 14 fourths = 3 wholes plus 2 fourths, or 3 wholes plus 1 tooth.
8.66-3.86=4.8=4 wholes and 17 over 21
It is 5 3/7.
31/3 − 2/3 = 8/3 or 22/3
4 - 2/4 = 3 2/4 = 3 1/2
minus 21 think of it as 12+9 which equals 21 then just whack a minus sign infront
It is 2 11/20.
3 minus -9 is 12.
12/3 minus 3/4 is 3 1/4 or 3.25
-12 - 3 = -15
12 minus 1/3 equals 11 and 2/3.