Question

математика 5 класс помогите​

Answer 1

Ответ:

$3 + \frac{1}{3} = \frac{3}{1} + \frac{1}{3} = \frac{9 + 1}{3} = \frac{10}{ 3} = 3 \times \frac{1}{3}$

$4 + \frac{2}{7} = \frac{4}{1} + \frac{2}{7} = \frac{28 + 2}{7} = \frac{30}{7} = 4 \times \frac{2}{7}$

$\frac{3}{4} + \frac{1}{4} + \frac{7}{9} = \frac{27 + 9 + 7}{36} = \frac{43}{36 } = 1 \times \frac{7}{36}$