Question

5 4/19 умножить на 3 4/7 плюс 1 15/19 разделить 7/25 минус 1 2/3

Answer 1

5 4/19 * 3 4/7 + 1 15/19  / 7/25 -1 2/3    =  99/19 * 25/7 + 34/19  / 7/25 - 1 2/3 =
2475/133 + 850/133 - 1 2/3 = 3325 /133 - 1,2/3 = 25 - 1 2/3  = 23 1/3

Answer 2

$5 \frac{4}{19} *3 \frac{4}{7} +1 \frac{15}{19} : \frac{7}{25} -1 \frac{2}{3} =23 \frac{1}3} \\ \\ 1)5 \frac{4}{19} *3 \frac{4}{7} = \frac{99}{19} * \frac{25}{7} = \frac{2475}{133} \\ \\ 2) \frac{34}{19} * \frac{25}{7} = \frac{850}{133} \\ \\ 3) \frac{2475}{133} + \frac{850}{133} = \frac{3325}{133} \\\\4) \frac{3325}{133} -1 \frac{2}{3} =25-1 \frac{2}{3} =24 \frac{3}{3} -1 \frac{2}{3} =23 \frac{1}3}$