Question

сделайте пожалуйста 39

Answer 1

вот решение.заранее незачто

Answer 2

1. $frac{7}{15} + frac{2}{15} = frac{7+2}{15} = frac{9}{15} = frac{3}{5} = 0,6$
2. $frac{37}{46} - frac{21}{46} = frac{37-21}{46} = frac{16}{46} = frac{8}{23} = 0,35$
3. $5frac{17}{36} + 3frac{7}{36} = frac{5*36+17}{36} + frac{3*36+7}{36} = frac{197}{36} + frac{115}{36} = frac{197+115}{36} = frac{312}{36} = frac{26}{3} = 8,6$
4. $17frac{53}{63} - 9frac{32}{63} = frac{17*63+53}{63} - frac{9*63+32}{63} = frac{1124}{63} - frac{599}{63} = frac{1124-599}{63} = frac{525}{63} = frac{75}{9} = frac{25}{3} = 8,3$