Question

1 целая 7/60-0.01-1/40; 5/12-(3.1-2 целая 8/9); 6.8-( 2целых 1/15-1 целая 4/35); 5целых 4/21 -1.6- 2целых 3/14. СРОЧНО!!!ЗАРАНЕЕ СПАСИБО!

Answer 1

$1) 1frac{7}{60}- frac{1}{40}-0.01=1 frac{14-3}{120}-0.01 =1 frac{11}{120}- frac{1}{100}=1 frac{55-6}{600} =1 frac{49}{600}$
$2) frac{5}{12} +2 frac{8}{9} -3.1=2 frac{30+64}{72}-3.1=3 frac{22}{72} -3 frac{1}{10}= frac{37}{180}$
$3)6.8- frac{7-12}{105}=6.8+ frac{5}{105}=6 frac{8}{10}+ frac{1}{21}=6 frac{168+10}{210}=6 frac{178}{210} =6 frac{89}{105}$
$4)5 frac{4}{21}-2 frac{3}{14}-1.6=3 frac{8-9}{42}-1.6=2 frac{50-9}{42}-1 frac{6}{10}=1 frac{41}{42}-1 frac{3}{5}= frac{205-126}{210}$
$frac{79}{210}$