=10/24 - 9/24 + 1/18
=1/24 + 1/18
=3/72 + 4/72
=7/72
\(\frac{5}{12}-\frac{3}{8}+\frac{1}{18}\\ =\frac{30}{72}-\frac{27}{72}+\frac{4}{72}\\ =\frac{3}{72}+\frac{4}{72}\\ =\frac{7}{72}\)
\(\frac{5}{12}-\frac{3}{8}+\frac{1}{18}\)
=\(\frac{30}{72}-\frac{27}{72}+\frac{4}{72}\)
=\(\frac{3}{72}+\frac{4}{72}\)
=\(\frac{7}{72}\)
Chúc bn hc tốt