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  • 1целая 1/7 • 3целых 1/16=
    16/81 • 45/57 • 19/4=
    1/3 : 2/5=
    1/2 : 1/5=
    6 : 2/3=
    8 : 1/3=
    1/2 : 4=
    2/3 : 7=
    3/5 : 6=
    3/4 : 15/4=
    15/16 : 3/10=
    36/49 : 6/7=
    1целая 7/9 : 3целых 3/4=
    35/48 : 21/32=
    1целая 7/25 : 6целых 2/5=
    5/38 : 5=
    18/23 : 6=
    5целых 1/3 : 6 целых 2/3=
    4,2 : 3 целых 1/2=
    5,7 : 6 целых 1/3=
    8/11 : 0,4=
    2,2 : 11,15=
    5целых 1/7 : 3 целых 3/14=
    8 : 2целых 2/3=
    1целая 1/3 : 1целая 7/9=
    15/16 : 5/6=

    4целых 1/3 : 6,5
    _____________(первый пример)
    2целых 1/6: 3,25


    7целых 7/8 : 1,5
    ____________________(второй пример)
    2 целых 2/5 : 1целая 1/7

Ответы 1

  • Пошаговое объяснение:

    1 \frac{1}{7} \times 3 \frac{1}{16} = \frac{8 \times 49}{7 \times 16} = \frac{7}{2} = 3 \frac{1}{2} = 3.5 \\ - - - \\ \frac{16}{81 } \times \frac{45}{57} \times \frac{19}{4} = \frac{4 \times 15 \times 19}{81 \times 19 \times 1} = \frac{60}{81} = \frac{20}{27}

    \frac{1}{3} \div \frac{2}{5} = \frac{1 \times 5}{3 \times 2} = \frac{5}{6} \\ \frac{1}{2} \div \frac{1}{5} = \frac{5}{2} = 2 \frac{1}{2}

    6 \div \frac{2}{3} = 6 \times \frac{3}{2} = 3 \times 3 = 9 \\ 8 \div \frac{1}{3} = 8 \times 3 = 24 \\ \frac{1}{2} \div 4 = \frac{1}{2} \times \frac{1}{4} = \frac{1}{8} \\ \frac{2}{3} \div 7 = \frac{2}{3} \times \frac{1}{7} = \frac{2}{21}

    \frac{3}{5} \div 6 = \frac{3}{5} \times \frac{1}{6} = \frac{1}{5 \times 2} = \frac{1}{10} \\ \frac{3}{4} \div \frac{15}{4} = \frac{3 \times 4}{4 \times 15} = \frac{1}{5} \\ \frac{15}{16} \div \frac{3}{10} = \frac{15 \times 10}{16 \times 3} = \frac{5 \times 5}{8} = \frac{25}{8} = 3 \frac{1}{8}

    \frac{36}{49} \div \frac{6}{7} = \frac{36 \times 7}{49 \times 6} = \frac{6}{7} \\ 1 \frac{7}{9} \div 3 \frac{3}{4} = \frac{16}{9} \div \frac{15}{4} = \frac{16 \times 4}{9 \times 15} = \frac{64}{135} \\ \frac{35}{48} \div \frac{21}{32} = \frac{35 \times 32}{48 \times 21} = \frac{ 5 \times 4 }{6 \times 3} = \frac{5 \times 2}{3 \times 3} = \frac{10}{9} = 1 \frac{1}{9}

    1 \frac{7}{25} \div 6 \frac{2}{5} = \frac{32}{25} \div \frac{32}{5} = \frac{32 \times 5}{25 \times 32} = \frac{1}{5} \\ \frac{5}{38} \div 5 = \frac{5}{38} \times \frac{1}{5} = \frac{1}{38} \\ \frac{18}{23} \div 6 = \frac{18}{23} \times \frac{1}{6} = \frac{3}{23}

    5 \frac{1}{3} \div 6 \frac{2}{3} = \frac{16}{3} \div \frac{20}{3} = \frac{16 \times 3}{3 \times 20} = \frac{4}{5} \\ 4.2 \div 3 \frac{1}{2} = \frac{42}{10} \div \frac{7}{2} = \frac{42 \times 2}{10 \times 7} = \frac{6}{5} = 1 \frac{1}{5} = 1.2 \\ 5.7 \div 6 \frac{1}{3} = \frac{57}{10} \div \frac{19}{3} = \frac{57 \times 3}{10 \times 19} = \frac{9}{10} = 0.9

    \frac{8}{11} \div 0.4 = \frac{8}{11} \div \frac{4}{10} = \frac{8 \times 10}{11 \times 4} = \frac{20}{11} = 1 \frac{9}{11} \\ 2.2 \div 11.15 = \frac{22}{10} \div \frac{1115}{100} = \frac{22 \times 100}{10 \times 1115} = \frac{22 \times 2}{223} = \frac{44}{223} \\ 5 \frac{1}{7} \div 3 \frac{3}{14} = \frac{36}{7} \div \frac{45}{14} = \frac{36 \times 14}{7 \times 45} = \frac{4 \times 2}{5} = \frac{8}{5} = 1 \frac{3}{5}

    8 \div 2 \frac{2}{3} = 8 \div \frac{8}{3} = 8 \times \frac{3}{8} = 3 \\ 1 \frac{1}{3} \div 1 \frac{7}{9} = \frac{4}{3} \div \frac{16}{9} = \frac{4 \times 9}{3 \times 16} = \frac{3}{4} \\ \frac{15}{16} \div \frac{5}{6} = \frac{15 \times 6}{16 \times 5} = \frac{3 \times 3}{8} = \frac{9}{8} = 1 \frac{1}{8}

    \frac{4 \frac{1}{3} \div 6.5 }{2 \frac{1}{6} \div 3.25 } = \frac{ \frac{13}{3} \div \frac{65}{10} }{ \frac{13}{6} \div \frac{325}{100} } = \frac{ \frac{13 \times 10}{3 \times 65} }{ \frac{13 \times 100}{6 \times 325} } = \frac{13 \times 10 \times 6 \times 325}{3 \times 65 \times 13 \times 100} = \frac{6 \times 325}{3 \times 65 \times 10} = \frac{2 \times 5}{10} = \frac{10}{10} = 1 \\

    \frac{7 \frac{7}{8} \div 1.5}{2 \frac{2}{5} \div 1 \frac{1}{7} } = \frac{ \frac{63 \times 10}{8 \times 15} }{ \frac{12 \times 7}{5 \times 8} } = \frac{63 \times 10 \times 5 \times 8}{8 \times 15 \times 12 \times 7} = \frac{9 \times 10}{3 \times 12} = \frac{3 \times 5}{6} = \frac{5}{2} = 2 \frac{1}{2} = 2.5 \\

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