Simplify : `(0.05 xx 0.05 xx 0.05 + 0.04 xx 0.04 xx 0.04)/(0.05 xx 0.05 - 0.05 xx 0.04 + 0.04 xx 0.04)`
Express as vulgar fractions : 2.53`overline(6)`
Express as vulgar fractions : 0.12`overline(54)`
Express as vulgar fractions : 0.1`overline(7)`
Express as vulgar fractions : 3.`overline(142857)`