Выполните сложение: 3/4+2/3 3/10+2/15 4/9+1/6 7/15+3/40

[latex] \frac{3}{4} + \frac{2}{3}= \frac{9+8}{12} = \frac{17}{12} = 1 \frac{5}{12} [/latex] [latex] \frac{3}{10} + \frac{2}{15} = \frac{9+4}{30} = \frac{13}{30} [/latex] [latex] \frac{4}{9} + \frac{1}{6} = \frac{8+3}{18} = \frac{11}{18} [/latex] [latex] \frac{7}{15} + \frac{3}{40} = \frac{56+9}{120} = \frac{65}{120} = \frac{13}{24} [/latex]