-2/3-[-4/5 - 1/2] is the question
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Answer:
= 19/30
Step-by-step explanation:
-2/3 - [-4/5 - 1/2]
= -2/3 - [(-4×2)/(5×2) - (1×5)/(2×5)]
= -2/3 - [ -8/10 - 5/10]
= -2/3 - [ (-8-5)/10]
= -2/3 - ( -13/10)
= -2/3 + 13/10
= (-2× 10 / 3×10 ) + (13×3/10×3)
= -20/30 + 39/30
= (-20 + 39) /30
= 19/30
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