4 2/5 + 5 6/9 + 2 3/4 + 3/5 + 1/3 + 1/4
= 4 + 2/5 + 5 + 6/9 + 2 + 3/4 + 3/5 + 1/3 + 1/4
= (4 + 5 + 2) + (2/5 + 3/5) + (6/9 + 1/3) + (3/4 + 1/4)
= 11 + 1 + 1 + 1
= 11 + 1 × 3
= 11 + 3
= 14
Chú ý: hỗn số vít hơi khó, phải zô Fx nên mk ngăn = dấu cách nha
Ủng hộ mk nha ☆_☆♥_♥^_-
4 2/5 + 5 6/9 + 2 3/4 + 3/5 + 1/3 + 1/4
= 4 + 2/5 + 5 + 6/9 + 2 + 3/4 + 3/5 + 1/3 + 1/4
= (4 + 5 + 2) + (2/5 + 3/5) + (6/9 + 1/3) + (3/4 + 1/4)
= 11 + 1 + 1 + 1
= 11 + 1 × 3
= 11 + 3
= 14
\(4\frac{2}{5}+5\frac{6}{9}+2\frac{3}{4}+\frac{3}{5}+\frac{1}{3}+\frac{1}{4}\)
\(=\left(4\frac{2}{5}+\frac{3}{5}\right)+\left(5\frac{6}{9}+\frac{1}{3}\right)\left(2\frac{3}{4}+\frac{1}{4}\right)\)
\(=5+6+3\)
\(=14\)
4 2/5 + 5 6/9 + 2 3/4 + 3/5 + 1/3 + 1/4
= 4 + 2/5 + 5 + 6/9 + 2 + 3/4 + 3/5 + 1/3 + 1/4
= (4 + 5 + 2) + (2/5 + 3/5) + (6/9 + 1/3) + (3/4 + 1/4)
= 11 + 1 + 1 + 1
= 11 + 1 × 3
= 11 + 3
= 14
