Question

1/вычислите нажми на фото и прочти

Answer 1

$( frac{3}{4} + frac{1}{5} )* frac{5}{19} =. 1)3/4+1/5=19/20 2)19/20*5/19=1/4$

Answer 2

1. 1) 3/4 + 1/5 = 15/20 + 4/20 = 19/20
2) 19/20 * 5/19 = 1/4 = 0,25

2. 1) 12 1/3 - 7 3/4 = 12 4/12 - 7 9/12 = 11 16/12 - 7 9/12 = 4 7/12
2) 4 7/12 * 6/11 = 55/12 * 6/11 = 5/2 = 2 1/2 = 2,5