tolong bantu kerjain ya

langsung yaaa

1/4×40/7×1/2×23=
10/7×1/2×23=
5/7×23=
115/7=16 3/7

3/4 x (42/7 - 2/7) : 29/3
3/4 x 40/7 : 29/3
120/28 : 29/3
120/28 x 3/29
360/812
90/203
kalau salah maaf ya..