Question

Выполните действия:
(11 5/8 : 15,5 +4,25 -3 7/9)×9/22-0,59

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ДАЮ 20 БАЛЛОВ​

Answer 1

Объяснение:

$(11 \frac{5}{8} \div 15 .5 + 4.25 - 3 \frac{7}{9} ) \times \frac{9}{22} - 0.59 = \left(\frac{11\times 8+5}{8\times 15.5}+4.25-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{88+5}{8\times 15.5}+4.25-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{93}{8\times 15.5}+4.25-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{93}{124}+4.25-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{3}{4}+4.25-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{3}{4}+\frac{17}{4}-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{3+17}{4}-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{20}{4}-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(5-\frac{3\times 9+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(5-\frac{27+7}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(5-\frac{34}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\left(\frac{45}{9}-\frac{34}{9}\right)\times \left(\frac{9}{22}\right)-0.59 =\frac{45-34}{9}\times \left(\frac{9}{22}\right)-0.59 =\frac{11}{9}\times \left(\frac{9}{22}\right)-0.59 =\frac{11\times 9}{9\times 22}-0.59 =\frac{11}{22}-0.59 =\frac{1}{2}-0.59 =\frac{1}{2}-\frac{59}{100} =\frac{50}{100}-\frac{59}{100} =\frac{50-59}{100} =-\frac{9}{100}$