10/4 - z - 8/16 = 21/2 - z - 1/2 = 2 - z
4/10 or 2/5
7/10 - 4/10 = 3/10
9/10 - 1/2 = 9/10 - 5/10 = 4/10 = 2/5
Ans: 2 10 minus 4 times 2 = 10 - (4*2) = 10-8 = 2
10/12 minus 2/4 is 1/3
It is: 4/5 minus 1/2 = 3/10
2/5 = 4/10 minus 1/10 is 3/10
10/4 - z - 8/16 = 21/2 - z - 1/2 = 2 - z
4/10 or 2/5
(7-3)/10 = 4/10 = 2/5
7/10 - 4/10 = 3/10
9/10 - 1/2 = 9/10 - 5/10 = 4/10 = 2/5
2/5 - 3/10 = (2×2)/(5×2) - 3/10 = 4/10 - 3/10 = (4-3)/10 = 1/10.
Ans: 2 10 minus 4 times 2 = 10 - (4*2) = 10-8 = 2
9/10 - 2/5 = 9/10 * 4/10 = 5/10 = 1/2 or 0.5
4/5 - 3/10 = 8/10 - 3/10 = 5/10 = 1/2