Simplify:-fast.........................

Answers (1)

given

2/3×(-4/7+1/5)+-2/5
=2/3×{(-20+7)/35}+(-2/5)
=2/3×(-13/35)-2/5
=-26/105-2/5
=(-26-42)/105
=-68/105
The required answer is -68/105=0.647619048.

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