18+116+132=\frac {1}{8} + \frac {1}{16} + \frac {1}{32} = 81+161+321= A7/32B3/32C3/64D1/64Answer: A. 7/32 Read Explanation: 1/8 + 1/16 + 1/32 =(4+2+1)/32 =7/32Read more in App