ĐÃ GIÚP THÌ GIÚP HẾT ĐI ,VIẾT MỖI KẾT QUẢ THÔI À. BẤM MÁY TÍNH À?TÍNH NHANH MÀ!
\(P=\frac{\frac{2}{3}-\frac{1}{4}+\frac{5}{11}}{\frac{5}{12}+1-\frac{7}{11}}\)
\(=\frac{3\cdot4\cdot11\left(\frac{2}{3}-\frac{1}{4}+\frac{5}{11}\right)}{3\cdot4\cdot11\left(\frac{5}{12}+1-\frac{7}{11}\right)}\)
\(=\frac{\frac{3\cdot4\cdot11\cdot2}{3}-\frac{3\cdot4\cdot11\cdot1}{4}+\frac{3\cdot4\cdot11\cdot5}{11}}{\frac{3\cdot4\cdot11\cdot5}{12}+3\cdot4\cdot11-\frac{3\cdot4\cdot11\cdot7}{11}}\)
\(=\frac{88-33+60}{55+132-84}\)
\(=\frac{115}{103}\)
\(P=\frac{\frac{2}{3}-\frac{1}{4}+\frac{5}{11}}{\frac{5}{12}+1-\frac{7}{11}}\)
\(P=\frac{\frac{88}{132}-\frac{33}{132}+\frac{60}{132}}{\frac{55}{132}+\frac{132}{132}-\frac{84}{132}}\)
\(P=\frac{\frac{88-30+60}{132}}{\frac{55+132-84}{132}}=\frac{\frac{115}{132}}{\frac{103}{132}}\)
\(P=\frac{115}{132}.\frac{132}{103}=\frac{115}{103}\)