yang e sama f ya, tolong pakai cara

e =25/10 ×4/1 - 6/5 × 20/100
=10/1- 6/25
=250/25 - 6/25
=250/25 - 6/25 = 244/25
= 9 19/25
f=23/6 × 4/10 - 9/8 × 4/3
=92/30 - 45/30
=47/30