1−[12+14+18]=?1-[\frac12+\frac14+\frac18]=?1−[21+41+81]=? A7/8B1/8C2/3D1/6Answer: B. 1/8 Read Explanation: 1−[12+14+18]1-[\frac12+\frac14+\frac18]1−[21+41+81] =1−4+2+18=1-\frac{4+2+1}{8}=1−84+2+1 =1−7/8=1-7/8=1−7/8 =1/8=1/8=1/8 Read more in App