0,121:11/12=?43,75*2/35=?13/21*8,4=?

0,121÷[latex] \frac{11}{12} [/latex]=[latex] \frac{121}{1000} [/latex]×[latex] \frac{12}{11} [/latex]=[latex] \frac{11}{1000} [/latex]×[latex] \frac{12}{1} [/latex]=[latex] \frac{132}{1000} [/latex]=[latex] \frac{66}{500} [/latex]=[latex] \frac{33}{250} [/latex] 43,75×[latex] \frac{2}{35} [/latex]=4375/10000×2/35=125/5000×11/1=125/5000=25/1000=5/200=1/40 13/21×8,4=13/21×84/100=13/1×4/100=52/100=26/50=13/25