1)[tex] \frac{5}{12} *2 \frac{2}{3} -7 \frac{2}{3} *(- \frac{1}{6} )=[/tex]
2)[tex]-1 \frac{3}{7} *4 \frac{2}{3} +1 \frac{7}{9} *(- \frac{4}{3} )[/tex]
2)[tex]-1 \frac{3}{7} *4 \frac{2}{3} +1 \frac{7}{9} *(- \frac{4}{3} )[/tex]
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Answers & Comments
=10/9+4/9=(10+4)/9=14/9=1⁵/₉;
2) -1³/₇·4²/₃+1⁷/₉·(-4/3)=-10/7·14/3+16/9·(-4/3)=-(14·10)/(7·3)-(16·4)/(9·3)=
=-20/3-64/27=(-180-64)27=-244/27=-9¹/₂₇;