Question

4целых-(41/84-5/21)+7целых11/30

Answer 1

$4-( frac{41}{84} - frac{5}{21} )+7 frac{11}{30} =4-( frac{41}{84} - frac{20}{84} )+7 frac{11}{30} =4- frac{21}{84} +7 frac{11}{30} = \ 4- frac{1}{4} +7 frac{11}{30} = 3frac{3}{4} +7 frac{11}{30}=3frac{45}{60} +7 frac{22}{60}=10 frac{67}{60} =11 frac{7}{60}$