(11/10-4/11):15/44 решить

[latex] 1) frac{11}{10} - frac{4}{11} = frac{121}{110} - frac{40}{110} = frac{81}{110} [/latex][latex]2) frac{81}{110}: frac{15}{44}= frac{81*44}{110*15} = frac{27*2}{5*5} = frac{54}{25} =2 frac{4}{25} [/latex]

приводим к общему знаменателю11/10-4/11=121/110-40/110=81/11081/110:15/44=81/110*44/15=27/5*2/5=54/25=2 4/25