Question

вычислите в)7/12 - 5/24 ; е)19/45+4/15 и) 11/13-20/39 м) 29/64 + 3/8

Answer 1

$frac{7}{12} - frac{5}{24} = frac{14-5}{24} = frac{9}{24} = frac{3}{8} \ \ frac{19}{45} + frac{4}{15} = frac{19+12}{45} = frac{31}{45} \ \ frac{11}{13} - frac{20}{39} = frac{33-20}{39} = frac{13}{39}= frac{1}{3} \ \ frac{29}{64} + frac{3}{8} = frac{29+24}{64} = frac{53}{64}$