Как решить 48 целых 3/4-14 целых 4/6

$48 frac{3}{4} -14 frac{4}{6} =48-14+ frac{9-8}{12} =34 frac{1}{12}$
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$48 frac{3}{4} -14 frac{4}{6} =48 frac{9}{12}-14 frac{8}{12} =34 frac{1}{12}$

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$31 frac{11}{18} -8 frac{3}{4} -11 frac{15}{36} +2 frac{7}{9} =(31-8-11+2)+( frac{22-27-15+28}{36} )=14 frac{8}{36} =$ $=14 frac{2}{9}$

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$31 frac{11}{18} -8 frac{3}{4} -11 frac{15}{36} +2 frac{7}{9} =14 frac{2}{9} 1)31 frac{11}{18} -8 frac{3}{4} =31 frac{22}{36}-8 frac{27}{36} =22 frac{31}{36} 2)22 frac{31}{36} -11 frac{15}{36} =11 frac{16}{36} =11 frac{4}{9} 3)11 frac{4}{9} +2 frac{7}{9} =13 frac{11}{9} =14 frac{2}{9}$
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$36 frac{3}{4} -(12 frac{5}{6} -8 frac{1}{2} )+9 frac{2}{3} =42 frac{1}{12} 1)12 frac{5}{6} -8 frac{1}{2} =12 frac{5}{6} -8 frac{3}{6} =4 frac{2}{6} =4 frac{1}{3} 2)36 frac{3}{4} -4 frac{1}{3} =36 frac{9}{12} -4 frac{4}{12} =32 frac{5}{12} 3)32 frac{5}{12} +9 frac{2}{3} =32 frac{5}{12} +9 frac{8}{12} =41 frac{13}{12} =42 frac{1}{12}$