Question

1/40+1/60= 1/16+1/60= с дробями.заранее

Answer 1

1/40+1/60=3/120+2/120=5/120=1/24
1/16+1/60=15/240+4/240=19/240

Answer 2

$\frac{1}{40}+ \frac{1}{60}= \frac{3+2}{120}= \frac{5}{120} = \frac{1}{24}$
$\frac{1}{16} + \frac{1}{60} = \frac{15+4}{240} = \frac{19}{240}$