Question

Помогите пожалуйста!!!

Answer 1

$(frac{3}{4} + frac{1}{2} + frac{5}{12}) times 12 = frac{(3 times 3 + 1times 6 + 5) times 12}{12} = 9 + 6 + 5 = 20$

$24 times ( frac{1}{2} + frac{3}{8} + frac{5}{6} ) = frac{24 times (12 + 3 times 3 + 5 times 4)}{24 } = 12 + 9 + 20 = 41$

$4 times frac{1}{3} + 4 times frac{2}{5} + 4 times frac{2}{15} = 4 times ( frac{1}{3} + frac{2}{5} + frac{2}{15} ) = 4 times frac{5 + 2 times 3 + 2}{15} = 4 times frac{5 + 6 + 2}{15} = frac{4 times 13}{15} frac{52}{15} = 3 frac{7}{15}$

$7 times frac{2}{3} + 7 times frac{1}{2} + 7 times frac{5}{6} = 7 times ( frac{2}{3} + frac{1}{2} + frac{5}{6}) = 7 times frac{2 times 2 + 3 + 5}{6} = 7 times frac{12}{6} = 7 times 2 = 14$