Question

15 7/10+2 2/10-4 1/10

Answer 1

Ответ:

13 13/20

$15 \frac{7}{10} + 2 \frac{2}{10} - 4 \frac{1}{4} =$

$(15 + 2 - 4) + ( \frac{7}{10} + \frac{2}{10} - \frac{1}{4} )$ =

$13 + \frac{13}{20} = 13 \frac{13}{20}$