Tolong bantu nomor 3 b pake cara nya

3 3/4 = 15/4
1 1/6 = 7/6

15/4×7/10-7/6 = 3/4×7/2-7/6
= 21/4-7/6
= 63/12-21/12
= 42/12
= 2

Semoga membantu, maaf kalo salah