Question

Answer 1

213:

a: 1-1/2=1/2

b: 1-3/10=7/10

c: 3-1/3=8/3

d: 4-1/9=36/9-1/9=35/9

e: 8-2/3=24/3-2/3=22/3

f: 5-2/5=25/5-2/5=23/5

Answer 2

 Bài 213:

\(a,1-\dfrac{1}{2}=\dfrac{2}{2}-\dfrac{1}{2}=\dfrac{1}{2}\\ b,1-\dfrac{3}{10}=\dfrac{10}{10}-\dfrac{3}{10}=\dfrac{7}{10}\\ c,3-\dfrac{1}{3}=\dfrac{9}{3}-\dfrac{1}{3}=\dfrac{8}{3}\\ d,4-\dfrac{1}{9}=\dfrac{36}{9}-\dfrac{1}{9}=\dfrac{35}{9}\\ e,8-\dfrac{2}{3}=\dfrac{24}{3}-\dfrac{2}{3}=\dfrac{22}{3}\\ g,5-\dfrac{2}{5}=\dfrac{25}{5}-\dfrac{2}{5}=\dfrac{23}{5}\)