1. 2 6/7×1/2= 2.4 1/5×3/7= . . 3.2 1/2 ×2 3/4=

2 6/7×1/2= 20/7×1/2=20/17=1 3/17

1. 2 6/7 x 1/2 = 20/7 x 1/2
= 20/14 = 10/7
2. 4 1/5 x 3/7 = 21/5 x 3/7
= 63/35 = 1 28/35
3. 2 1/2 x 2 3/4 = 5/2 x 11/4
= 55/8 = 6 7/8

semoga membantu
maaf jika salah