Bagaimanakah cara mengerjakan soal ini?
23×14=...\frac{2}{3}\times\frac{1}{4}=...32×41=...
2×13×4=212\frac{2\times1}{3\times4}=\frac{2}{12}3×42×1=122
2×13×4=215\frac{2\times1}{3\times4}=\frac{2}{15}3×42×1=152
2+13×4=312\frac{2+1}{3\times4}=\frac{3}{12}3×42+1=123
2134\frac{21}{34}3421