Question

276 решите через 10 минут в школу

Answer 1

$1)4 frac{5}{9} + 7 frac{1}{6} = 4 + 7 + frac{5}{9} + frac{1}{6} = 11 + frac{5 times 2 + 1 times 3}{18} = 11 frac{13}{18}$
$2)6 frac{11}{12} + 8 frac{13}{18} = 14 + frac{11 times 3 + 13 times 2}{36} = 14 + frac{59}{36} = 15 frac{23}{36}$
$3)2 frac{3}{16} + 1 frac{7}{24} + 3 frac{1}{12} = 2 + 1 + 3 + frac{3 times3 + 7 times 2 + 1 times 4 }{48} = 6 + frac{27}{48} 6 frac{9}{16}$