Question

а) 4 1/12 + 1 1/6 б) 2 3/5 + 3 1/3 в) 5 14/25 + 2 7/15 г) 7 3/10 - 2 4/15 д) 4 5/8 - 2 1/3 ё) 5 3/4 - 2 4/5 ​

Answer 1

Ответ:

$1)4 \frac{1}{12} + 1 \frac{1}{6} = \frac{49}{12} + \frac{7}{6} = \frac{49 + 14}{12} = \frac{63}{12} = 5.25$

$2)2 \frac{3}{5} + 3 \frac{1}{3} = \frac{13}{5} + \frac{7}{3} = \frac{39}{15} + \frac{35}{15} = \frac{74}{15} = 4.93$

$3)5 \frac{14}{25} + 2 \frac{7}{15} = \frac{139}{25} + \frac{37}{15} = \frac{602}{75} = 8.026$

$4)7 \frac{3}{10} - 2 \frac{4}{15} = \frac{73}{10} - \frac{34}{15} = \frac{219 - 68}{30} = \frac{151}{30} = 5.03$