Forenkle [7 / 9-2 / 3] + [1/3 + 2/5 ÷ 4/5]?

Svar:

#color (indigo) (=> 17/18 #

#7/9 - 2/3 + 1/3 + 2/5 / 4/5#

# => 7/9 - 2/3 + 1/3 + 2/5 / 4/5, farve (crimson) ("Fjernelse af bøjlerne" # #

# => 7/9 - 2/3 + 1/3 + Annuller (2/5) ^ Farve (rød) (1) / Annuller (4/5) ^ Farve (rød) (2), Farve (Crimson) "Opdel" #

# => 7/9 + 1/3 + 1/2 - 2/3, farve (crimson) ("Omarrangere vilkår" #

# => (14 + 6 + 9) / 18 - 2/3, farve (crimson) ("tager LCM til addition" #

# => 29/18 - 2/3, farve (crimson) ("færdiggørelse af tilføjelse" #

# => (29-12) / 18, farve (crimson) ("LCM til subtraktion" #

# => 17/18, farve (crimson) ("completing subtraction" #