Question

Tính A = (15/22 - 1/11) : 1/33 - (1/14 - 2/21) : 1/35 + 1 + 1/5 x (1/4 - 1/6 - 1) x 5/11

Answer 1

A = ( 15/22 - 2/22 ) : 1/33 - ( 6/84 - 8/84) : 1/35 + 1 + 1/5 . ( 3/12 - 2/12 - 12/12 ) . 5/11

A = 13/22 . 33 - (-1/42) . 35 + 1 + 1/5 . - 11/12 . 5/11

A = 39/2 - ( -5/6 ) + 1 + - 11/60 .5/11

A = 39/2 + 5/6 + 1 + (- 1/12)

A = 234/12 + 10 /12 + 12/12 + (-1/12)

A = 255/12