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

### Instruction:
To make a yellow score mixture, Taylor has to combine white and black scores in the ratio of 7:6. If she got 78 yellow scores, what's 2/3 of the difference between the number of black and white scores she used?

### Response:
 Uwiano jumla unaowakilisha alama za manjano ambazo Taylor alipata ni 7+6=<<7+6=13>>13
Tofauti katika uwiano unaowakilisha alama za manjano ambazo Taylor alipata ni 7-6=<<7-6=1>>1
Kiwango kinachowakilisha tofauti hii ni 1/13, kinawakilisha 1/13*78=6
Nusu ya tofauti kati ya idadi ya alama za nyeusi na nyeupe ambazo Taylor alitumia ni 2/3*6=<<2/3*6=4>>4