\(\frac{31}{25}+\left(\frac{15}{16}-\frac{6}{15}\right)+\frac{1}{16}\)
\(=\frac{31}{25}+\frac{15}{16}-\frac{6}{15}+\frac{1}{16}\)
\(=\left(\frac{31}{25}-\frac{6}{15}\right)+\left(\frac{15}{16}+\frac{1}{16}\right)\)
\(=\frac{21}{25}+1\)
\(=\frac{46}{25}\)
A, 31/25 + ( 15/16 - 6/15) + 1/16
= 31/25 + 15/16 - 6/15 + 1/16
= ( 31/25 - 6/15 ) + ( 15/16 + 1/16 )
= 21/25 + 1
= 46/25
Chú ý: / này là phần nha