1 zad.Oblicz iloczyn liczb 4/7 i 14 ; 3/4 i 12 2 zad. Oblicz różnice liczb 4/5 i 1/3 ; 7/10 i 1/4 Najszybsza i dobra odp. dostaje naj

1) 4/7*14 = 4*2 = 8 3/4*12 = 3*3 = 9 2) 4/5 - 1/3 = 12/15 - 5/15 = 7/15 7/10 - 1/4 = 14/20 - 5/20 = 9/20

[latex] frac{4}{7} *14= frac{56}{7}= 8 \ \ frac{3}{4} *12= frac{36}{4} =9 \ \ \ frac{4}{5}- frac{1}{3} = frac{12}{15} - frac{5}{15} = frac{7}{15} \ \ frac{7}{10} - frac{1}{4} = frac{14}{20} - frac{5}{20} = frac{9}{20} [/latex]