Помогите, даю 30 баллов надо срочно 49.5

[latex] \frac{4}{3*12} = \frac{4}{36} = \frac{1}{9} [/latex] [latex] \frac{6}{7*12} = \frac{6}{84} =\frac{1}{14} [/latex] [latex] \frac{15}{9*5} = \frac{5}{45} \frac{1}{9} [/latex] [latex] \frac{21}{8*14} = \frac{21}{112} = \frac{3}{16} [/latex] [latex] \frac{23}{22*5} = \frac{23}{110} [/latex] [latex] \frac{25*25}{15*16} = \frac{625}{240} = \frac{25}{120} = \frac{5}{24} [/latex] [latex] \frac{30*40}{50*80} = \frac{1200}{4000} = \frac{12}{40} = \frac{3}{10} [/latex] [latex] \frac{36}{48*52} = \frac{36}{2496} = \frac{3}{208} [/latex]