Question

Вычислите: 2 целых 1/25 - 21/25 * (6 целых 8/9 : 2 целых 7/12 - 5/12 * 4 целых 4/35)

Answer 1

$2dfrac{1}{25} - dfrac{21}{25} cdotp bigg(6dfrac{8}{9} : 2dfrac{7}{12} - dfrac{5}{12} cdotp 4dfrac{4}{35} bigg)$

$dfrac{51}{25} - dfrac{21}{25} cdotp bigg(dfrac{62}{9} : dfrac{31}{12} - dfrac{5}{12} cdotp dfrac{144}{35} bigg)$

$dfrac{51}{25} - dfrac{21}{25} cdotp bigg( dfrac{62 cdotp 12}{9 cdotp 31} - dfrac{5 cdotp 144}{12 cdotp 35} bigg)$

$dfrac{51}{25} - dfrac{21}{25} cdotp bigg(dfrac{^{7cdotp/}8}{3} - dfrac{^{3cdotp/}12}{7} bigg)$

$dfrac{51}{25} - dfrac{21}{25} cdotp bigg(dfrac{56 - 36}{21} bigg)$

$dfrac{51}{25} - dfrac{21}{25} cdotp dfrac{20}{21}$

$dfrac{51}{25} - dfrac{21 cdotp 20}{25 cdotp 21}$

$dfrac{51}{25} - dfrac{^{5cdotp/}4}{5}$

$dfrac{51 - 20}{25}$

$dfrac{31}{25}$

$1dfrac{6}{25}$

Ответ: $1dfrac{6}{25}$