Question

$3 - \frac{3}{4} - \frac{1}{5} =$
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Answer 1

3 - 3/4 - 1/5

60 -15 -4 / 20

41/20

Answer 2

3 - 3/4 - 1/5

mmc = 20

60/20 - 15/20 - 4/20 = (60 - 19)/20 = 41/20