It is: 7/12
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1 over 8
1 whole and 7 over 12
5/12 - 4/12 = 1/12
1-(1/4) ======find common denominator 4/4 -(1/4) = 3/4 =====subtract just the numerators 3/4 is your final answer
19/21 - 4/12 (4/12 = 1/3) = 12/21Convert the 1/3 into 7/21 and subtract.