Вычислите:    1                                       5 3  -  - 2,5                           18 -  минус 9,5                        3                                      13        126 -  минус 5,7    11                       ...

[latex]3 \frac{1}{3} - 2,5 [/latex] = [latex]3 \frac{1}{3} - 2 \frac{1}{2} [/latex] = = [latex]3 \frac{2}{6} - 2 \frac{3}{6} [/latex] = [latex] \frac{5}{6} [/latex] [latex]18 \frac{5}{13} - 9,5 [/latex] = [latex]18 \frac{5}{13} - 9 \frac{1}{2} [/latex] = = [latex]18 \frac{10}{26} - 9 \frac{13}{26} [/latex] = [latex]8 \frac{13}{26} [/latex] [latex]26 \frac{1}{11} - 5,7 [/latex] = [latex]26 \frac{1}{11} - 5 \frac{7}{10} [/latex] = = [latex]26 \frac{10}{110} - 5 \frac{77}{110} [/latex] = [latex]20 \frac{43}{110} [/latex] 2 задание [latex]4 \frac{1}{9} * 0,9 [/latex] = [latex] \frac{37}{9} * \frac{9}{10} [/latex] = [latex] \frac{37}{10} [/latex] = 3,7 3,5 : [latex]4 \frac{2}{3} [/latex] = [latex]3 \frac{1}{2} [/latex] : [latex] \frac{14}{3} [/latex] = = [latex] \frac{7}{2} * \frac{3}{14} [/latex] = [latex] \frac{3}{4} [/latex] 0,6 : [latex] \frac{9}{25} [/latex] = [latex] \frac{3}{5} * \frac{25}{9} [/latex] = = [latex] \frac{5}{3} [/latex] = [latex]1 \frac{2}{3} [/latex] 3 [latex]16 \frac{1}{2} [/latex] : 11 + [latex]9 \frac{1}{6} [/latex] = = [latex] \frac{33}{2} * \frac{1}{11} + 9 \frac{1}{6} [/latex] = = [latex] \frac{2}{3} + 9 \frac{1}{6} [/latex] = [latex] \frac{9}{6} + 9 \frac{1}{6} [/latex] = = [latex]9 \frac{10}{6} [/latex] = [latex]10 \frac{4}{6} [/latex] = [latex]10 \frac{2}{3} [/latex] (0,28 + [latex]1 \frac{1}{3} [/latex]) : [latex] \frac{11}{30} [/latex] = = ([latex] \frac{7}{25} + 1 \frac{1}{3} [/latex]) * [latex] \frac{30}{11} [/latex] = = ([latex] \frac{21}{75} + 1 \frac{25}{75} [/latex]) * [latex] \frac{30}{11} [/latex] = = [latex]1 \frac{46}{75} * \frac{30}{11} [/latex] = [latex] \frac{121}{75} * \frac{30}{11} [/latex] = = [latex] \frac{66}{15} = 4 \frac{6}{15} = 4 \frac{2}{5} [/latex]