1/4 + 1/8 - 2 1/5 = ....

Jawab:
_______

1/4 + 1/8 - 2 1/5

1/4 - 1/8 - 11/5

1x10/4x10 + 1x5/8x5 - 11x8/5x8

10/40 + 5/40 - 88/40

10+5-88 /40

= - 73/40 pecahan biasa

= -1 33/40 pecahan campuran

= -1,825 pecahan desimal


*Terima kasih*