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Anonymous
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1/4 minus 9 is -8 3/4 or -8.75
1/4 minus 2/5 minus 3/10 is equal to -0.45 or -9/20
it is 9/20
It is: 9/10 minus 1/4 = 13/20
31/6 - 11/2 - 3/4 = 19/6 - 3/2 - 3/4 = 38/12 - 18/12 - 9/12 = 11/12