Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
William read 6 books last month and Brad read thrice as many books as William did. This month, in an effort to catch up, Williams read twice as much as Brad, who read 8 books. Who has read more across the two months, and by how much?

### Response:
 Mwezi wa kwanza, William alisoma vitabu 6, wakati Brad alisoma vitabu 6*3=<<6*3=18>>18.
Mwezi wa pili, William alisoma vitabu 2*8=<<2*8=16>>16, wakati Brad alisoma vitabu 8.
William amesoma jumla ya vitabu 6+16=<<6+16=22>>22, wakati Brad amesoma jumla ya vitabu 18+8=<<18+8=26>>26.
Brad amesoma vitabu 4 zaidi kuliko William.