Question

calculați: a) 1 8/9 +3 4/15 b) -7/16 +5/24 c) 12/35 ×( -5/6) d) 11/12:1 7/15​

Answer 1

a) 72/45+102/45=174/45.b)-21/48+10/48=-10/48.c)-2/7x1/1=-2/7.d)55/68.Sper ca te-am ajutat.

Answer 2

Răspuns:

$a)1 \frac{8}{9} + 3 \frac{4}{15} = \\ \frac{17}{9} + \frac{49}{15} = \\ \frac{45}{45} + \frac{147}{45} = \frac{192}{45}$

$c)\frac{12}{35} \times ( - \frac{5}{6} ) = - \frac{2}{5}$

$b) - \frac{7}{16} + \frac{5}{24} = \\ - \frac{21}{48} + \frac{10}{48} = - \frac{11}{48}$

$d) \frac{11}{12} \div 1 \frac{7}{15} = \\ \frac{11}{12} \div \frac{22}{15} = \\ \frac{11}{12} \times \frac{15}{22} = \frac{5}{8}$