简算2×1/5+4×2/11+4×3/5+3×4/11
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简算2×1/5+4×2/11+4×3/5+3×4/11
简算2×1/5+4×2/11+4×3/5+3×4/11
简算2×1/5+4×2/11+4×3/5+3×4/11
(2+12)x1/5+(8+12)x1/11
=14/5+20/11
=254/55
(2+3*4)/5+(2*4+3*4)/11
=254/55
简算2×1/5+4×2/11+4×3/5+3×4/11
简算2×1/5+4×2/11+4×3/5+3×4/11
简算2×1/5+4×2/11+4×3/5+3×4/11
(2+12)x1/5+(8+12)x1/11
=14/5+20/11
=254/55
(2+3*4)/5+(2*4+3*4)/11
=254/55