Question

(1/2×1/4)-(1×1/4)+[(-7/18)+(7/-15)​

Answer 1

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Answer 2

Answer:

(1/8)-(1/4)+(-7/18+7/-15)

(1×4-1×8)/8×4+(-7×-15+7×18)/18×-15)

((4-8)/32)+((105+126)/-270))

((-4)/32)+((-105+126)/270))

((-1/8)+(-21/270))

((-1/8)+(-7/90))

(-1×90)+(8×-7)/8×90

(-90-56/720)

(-146/720)

(-73/360)