4/10 - 1/5 = 2/5 - 1/5 = 1/5
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∙ 10y ago2/5 - 3/10 = (2×2)/(5×2) - 3/10 = 4/10 - 3/10 = (4-3)/10 = 1/10.
10-4 = 1/104 = 0.0001
4/5 minus 1/2 = 3/10
3/4
It is: 4/5 minus 3/10 = 1/2
9/10 minus 1/10 is 4/5
10/12 minus 2/4 is 1/3
It is: 4/5 minus 1/2 = 3/10
It is: 3/10-1/4 = 1/20
2/5 = 4/10 minus 1/10 is 3/10
4/5 - 1/10...8/10 - 1/10 = 7/10
1/4 − 10/11 = -29/44
9/10 − 4/5 = 1/10
1/4 - 1/10 = 5/20 - 2/20 = 3/20
9/10 - 4/5 = 9/10 - 8/10 = 1/10
4/10 or 2/5
10/4 - z - 8/16 = 21/2 - z - 1/2 = 2 - z