Expressed as a proper fraction in its simplest form, 1/9 - 5/18 = -1/6 or negative one sixth. Expressed as a decimal, this is equal to -0.16 recurring (that is, -0.16666...)
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5/9 − 1/6 = 7/18
2/5 minus 1/15 is 1/3
1/2 minus 5/32 is 11/32
five over nine is 10 over 18, five over six is 15 over 18, 10-15=-5 over -18 .....-5 18
You have to get the same common denominator, 9x2 is 18, so 7x2 is 14. 14/18-5/18 is 9/18. 9/9 is 1 and 18/9 is 2, so you are left with 1/2