Question

Плиз пожалуйста по математике

Answer 1

a)

$7 \frac{1}{2} + \frac{1}{4} = \frac{15}{2} + \frac{1}{4} = \frac{30 + 1}{4} = \frac{31}{4} = 7 \frac{3}{4}$

б)

$3 \frac{1}{4} + \frac{2}{3} =3 \frac{3}{12} + \frac{8}{12} = 3 \frac{11}{12}$

в)

$2 \frac{4}{9} + 1 \frac{1}{3} = 2 \frac{4}{9} + 1 \frac{3}{9} = 3 \frac{7}{9}$

г)

$2 \frac{3}{10} + 3 \frac{1}{5} = 2 \frac{3}{10} + 3 \frac{2}{10} = 5 \frac{5}{10} = 5 \frac{1}{2}$