Question

5/12+3/10
3/16+5/24
2/7-5/42

Answer 1

5/12+3/10=50/120+36/120=86/120=43/60

3/16+5/24=9/48+10/48=19/48

2/7-5/42=12/42-5/42=7/42=1/6

Answer 2

1)$frac{5}{12} + frac{3}{10} = frac{25}{60} + frac{18}{60} = frac{43}{60}$2)$frac{3}{16} + frac{5}{24} = frac{9}{48} + frac{10}{48} = frac{19}{48}$3)$frac{2}{7} - frac{5}{42} = frac{12}{42} - frac{5}{42} = frac{7}{42} = frac{1}{6}$

Answer 3

$frac{5}{12} + frac{3}{10} = frac{25}{60} + frac{18}{60} = frac{43}{60}$

Answer 4

Ну ладно, не заработало, так не заработало