Question

3int.2/3+1int.1/6+2
1/28+7/72+1/84
1/8+1int.1/3+4int.1/2
2int1/10+3int.1/35+1int.3/14
7/120+11/240+1/400
Daca stii ajutati.ma pls....

Answer 1

$\frac{1}{28} + \frac{7}{72} + \frac{1}{84} = \frac{18}{504} + \frac{49}{504} + \frac{6}{504}= \frac{73}{504} \\ \\ \frac{1}{8}+ \frac{4}{3} + \frac{9}{2}= \frac{3}{24} + \frac{32}{24} + \frac{108}{24}= \frac{143}{24 } \\ \\ \frac{21}{10}+ \frac{106}{35} + \frac{17}{14} = \frac{147}{70}+ \frac{212}{70} + \frac{85}{70}= \frac{444}{70}(:2)= \frac{222}{35} \\ \\ \frac{7}{120}+ \frac{11}{240} + \frac{1}{400} = \frac{70}{1200} + \frac{55}{1200} + \frac{3}{1200}= \frac{128}{1200}$