Question

скоротiть дроби 12/18; 13/39; 70/80; 96/128
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Answer 1

$\tt\displaystyle\frac{12}{18} =\frac{6*2}{6*3} =\frac{2}{3} \\ \\ \\ \frac{13}{39}=\frac{13}{13*3}  =\frac{1}{3}\\  \\ \\ \frac{70}{80} =\frac{7*10}{8*10} =\frac{7}{8} \\ \\ \\ \frac{96}{128} =\frac{16*6}{16*8}=\frac{6}{8}  =\frac{2*3}{2*4} =\frac{3}{4}$