Question

Решите пожалуйста!!!

Answer 1

$frac{75*27+75*37}{37*48-12*48} = frac{75(27+37)}{48(37-12)}= frac{75*64}{48*25} = frac{3*64}{48} = frac{64}{16} =4$

$frac{49*99+28*99}{12*154+21*154} = frac{99(49+28)}{154(23+21)} = frac{99*77}{154*33} = frac{99}{2*33} = frac{3}{2} =1,5$