Question

resolver a soma subtração das frações
a) 1-1/3 +2/4
B)2-2/5 + 3/5​

Answer 1

a)

$1-1/3+2/4\\\\=1-\frac{1}{3}+2/4\\\\=1-\frac{1}{3}+\frac{2}{4}\\\\=\frac{7}{6}\\\\=1\frac{1}{6}$

b)

$2-2/5+3/5\\\\=2-\frac{2}{5}+3/5\\\\=2-\frac{2}{5}+\frac{3}{5}\\\\=\frac{11}{5}\\\\=2\frac{1}{5}$