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Calculation 11 / 8 + 1 / 24 + 1 / 48 + 1 / 80 + 1 / 120 The formula and the answer must be correct
1/8+1/24+1/48+1/80+1/120
=1/(2×4)+1/(4×6)+1/(6×8)+1/(8×10)+1/(10×12)
=1/2×(1/2-1/4)+1/2×(1/4-1/6)+1/2×(1/6-1/8)+1/2×(1/8-1/10)+1/2×(1/10-1/12)
=1/2×(1/2-1/4+1/4-1/6+1/6-1/8+1/8-1/10+1/10-1/12)
=1/2×(1/2-1/12)
=1/2×5/12
=5/24
I understand. Please accept,
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