Question

2/3+7/9
2/5-3/8
1/2+3/3-1/5
4/5-1/4+2/3​

Answer 1

$3. \\ \frac{1}{2} + \frac{3}{3} - \frac{1}{5} \\ \\ \frac{5 + 10 - 2}{10} \\ \\ \frac{13}{10}$

$1. \\ \frac{2}{3} + \frac{7}{9 } \\ \\ \frac{6 + 7}{9} \\ \\ \frac{13}{9}$

$2.\\ \frac{2}{5} - \frac{3}{5} \\ \\ \frac{2 - 3}{5} \\ \\ \frac{ - 1}{5} \\ \\ - \frac{1}{5}$

$\frac{4}{5} - \frac{1}{4} + \frac{2}{3} \\ \\ \frac{48 - 15 + 40}{60} \\ \\ \frac{73}{60}$

$bons \: estudos$