6-[2/5+{3*1/4-(3/8+1/2)}]
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Step-by-step explanation:
6 - [2/5 + {3 × 1/4 - (3/8 + 1/2)}]
= 6 - [2/5 + {3 × 1/4 - ( 3/8 + 4/8)}]
= 6 - [2/5 + {3 × 1/4 - 7/8}]
= 6 - [2/5 + {3/4 - 7/8}]
= 6 - [2/5 + {6/8 - 7/8}]
= 6 - [ 2/5 - 1/8]
= 6 - [ 16/40 - 5/40]
= 6 - 11/40
= (240 - 11)/40
= 229/40
= 5.72 (ans)
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