Question

Resolução de substração de fração mista.
5 1/3- 2 11/12=
Obrigado

Answer 1

$5\dfrac{1}{3}-2\dfrac{11}{12}\\ \\ =\left(5+\dfrac{1}{3} \right )-\left(2+\dfrac{11}{12} \right )\\ \\ =5+\dfrac{1}{3}-2-\dfrac{11}{12}\\ \\ =5-2+\dfrac{1}{3}-\dfrac{11}{12}\\ \\ =3+\dfrac{12 \div 3 \times 1}{12}-\dfrac{11}{12}\\ \\ =3+\dfrac{4}{12}-\dfrac{11}{12}\\ \\ =3+\dfrac{4-11}{12}\\ \\ =3-\dfrac{7}{12}\\ \\ =2+1-\dfrac{7}{12}\\ \\ =2+\dfrac{12}{12}-\dfrac{7}{12}\\ \\ =2+\dfrac{12-7}{12}\\ \\ =2+\dfrac{5}{12}\\ \\ =2\dfrac{5}{12}\\ \\ \\ \boxed{5\dfrac{1}{3}-2\dfrac{11}{12}=2\dfrac{5}{12}}$