Question

\(\dfrac{\dfrac{2}{3}-\dfrac{1}{4}+\dfrac{5}{11}}{\dfrac{5}{12}+1-\dfrac{7}{11}}\)

Tính nhanh biểu thức

Answer 1

\(\dfrac{\dfrac{2}{3}-\dfrac{1}{4}+\dfrac{5}{11}}{\dfrac{5}{12}+1-\dfrac{7}{11}}\)

=\(\left(\dfrac{2}{3}-\dfrac{1}{4}+\dfrac{5}{11}\right):\left(\dfrac{5}{12}+1-\dfrac{7}{11}\right)\)

=\(\left(\dfrac{88}{132}-\dfrac{33}{132}+\dfrac{60}{132}\right):\left(\dfrac{55}{132}+\dfrac{132}{132}-\dfrac{84}{132}\right)\)

=\(\left(\dfrac{88-33+60}{132}\right):\left(\dfrac{55+132-84}{132}\right)\)

=\(\dfrac{115}{132}:\dfrac{103}{132}\)

=\(\dfrac{115}{132}.\dfrac{132}{103}\)

=\(\dfrac{115}{103}\)

Answer 2

115/103