Bài làm:
\(\left(6,254\div4,27+2,286\div4,27\right)\times12,37-12,37\)
\(=\left(8,54\div4,27\right)\times12,37-12,37\)
\(=2\times12,37-12,37=12,37\)
(6,254 : 4,27 + 2,286 : 4,27) x 12, 37 -12,37
=[ (6,254 + 2,286) : 4,27] x ( 12,37 - 12,37)
= [ 8,54 : 4,27 ] x 0
= 2 x 0
= 0