10/3×4×1/5+21/5×2/3+10/3×2×4/5+14/5×2/3=2/3×4+7/5×2+2/3×2×4+28/15=8/3+14/5+16/3+28/5=38/3
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10/3×4×1/5+21/5×2/3+10/3×2×4/5+14/5×2/3=2/3×4+7/5×2+2/3×2×4+28/15=8/3+14/5+16/3+28/5=38/3