Question

Помогите дам 15 баллов

Answer 1

$1)8 frac{1}{4} - 5 frac{1}{6} = frac{33}{4} - frac{31}{6} = frac{198 - 124}{24} = frac{74}{24} = 3 frac{4}{24} = 3 frac{1}{12} \ 2)7 frac{3}{5} - 3 frac{5}{7} = frac{38}{5} - frac{26}{7} = frac{266 - 130}{35} = frac{136}{35} = 3 frac{31}{35} \ 3)1 frac{3}{20} - frac{1}{4} = frac{23}{20} - frac{1}{4} = frac{23 - 5}{20} = frac{18}{20} = frac{9}{10} = 0.9 \ 4)8 frac{1}{6} - 7 frac{7}{9} = frac{48}{6} - frac{70}{9} = frac{432 - 420}{54} = frac{12}{54} = frac{6}{27} \ 5)3 frac{1}{6} + 3 frac{5}{6} = frac{19}{6} + frac{23}{6} = frac{42}{6} = 7 \ 6)1 frac{5}{8} + 6 frac{5}{12} = frac{13}{8} + frac{77}{12} = frac{39 + 154}{24} = frac{193}{24} = 8 frac{1}{24} \ 7) frac{47}{50} + 2 frac{3}{20} = frac{47}{50} + frac{43}{20} = frac{94 + 215}{100} = frac{309}{100} = 3.09$

Answer 2

Решение смотри на прикрепленном фото