15×78×223= \frac{1}{5}\times\frac{7}{8}\times2\frac{2}{3}= 51×87×232=
1 1 1
715 \frac{7}{15} 157
34×23×214x= \frac{3}{4}\times\frac{2}{3}\times2\frac{1}{4}x= 43×32×241x=
118x 1\frac{1}{8}x 181x
1311x 1\frac{3}{11}x 1113x
78×278×14= \frac{7}{8}\times2\frac{7}{8}\times\frac{1}{4}= 87×287×41=
4014 40\frac{1}{4} 4041
161256 \frac{161}{256} 256161
23×723×312= \frac{2}{3}\times7\frac{2}{3}\times3\frac{1}{2}= 32×732×321=
1789 17\frac{8}{9} 1798
1856 18\frac{5}{6} 1865
356×556×13x= 3\frac{5}{6}\times5\frac{5}{6}\times\frac{1}{3}x= 365×565×31x=
805108x \frac{805}{108}x 108805x
5815x \frac{58}{15}x 1558x