Question

найдите значения выражений

Answer 1

№436

$1) frac{5}{8} + frac{5}{6} + frac{7}{12}$ = $frac{15}{24} + frac{20}{24} = [tex]frac{35}{24} + frac{7}{12} = frac{35}{24} + frac{14}{24} = frac{39}{24} = 1frac{15}{24} = 1,625.$

НОЗ: 24 и 24.

2) $frac{1}{5} + frac{3}{8} - frac{2}{9} = frac{8}{40} + frac{15}{40} = frac{23}{40} - frac{2}{9} = frac{207}{360} - frac{80}{360} = frac{127}{360}$

НОЗ: 40 и 360.

3) $frac{1}{4} + frac{2}{9} - frac{5}{36} = frac{9}{36} + frac{8}{36} = frac{17}{36} - frac{5}{36} = frac{12}{36} = frac{1}{3}$

НОЗ: 36 и 36.

4) $frac{3}{4} + frac{4}{5} + frac{1}{20} = frac{15}{20} + frac{16}{20} = frac{31}{20} + frac{1}{20} = frac{32}{20} = 1frac{12}{20} = 1frac{3}{5} = 1,6$

НОЗ: 20 и 20.

5) $frac{3}{4} + frac{5}{12} - frac{1}{9} = frac{9}{12} + frac{5}{12} = frac{14}{12} - frac{1}{9} = frac{42}{36} - frac{4}{36} = frac{38}{36} = 1frac{2}{36} = 1frac{1}{18}$

НОЗ: 12 и 36.

6) $frac{4}{15} + frac{2}{5} + frac{7}{10} = frac{4}{15} + frac{6}{15} = frac{10}{15} + frac{7}{10} = frac{20}{30} + frac{21}{30} = frac{41}{30} = 1frac{11}{30}$

НОЗ: 15 и 30.