Question
Perform the operations. Reduce answers to lowest terms.$$512-921+39$$
Step 1
$$ 5\frac{12}{21} = \frac{5*21+12}{21} = \frac{105+12}{21} = \frac{117}{21} $$ $$ 3\frac{9}{21} = \frac{3*21+9}{21} = \frac{63+9}{21} = \frac{72}{21} $$ Show more…
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