\(\frac{8}{15}+\frac{2}{3}=\frac{8}{15}+\frac{10}{15}=\frac{6}{5}\)
\(\frac{3}{7}+\frac{4}{8}=\frac{24}{56}+\frac{28}{56}=\frac{13}{14}\)
a) 8/15 + 2/3
= 8/15 + 10/15
= 18/15
= 6/5
b) 3/7 + 4/8
= 24/56 + 28/56
= 52/56
= 13/14
\(a,\frac{8}{15}+\frac{2}{3}\)
\(=\frac{8}{15}+\frac{10}{15}\)
\(=\frac{18}{15}\)
\(=\frac{6}{5}\)
\(b,\frac{3}{7}+\frac{4}{8}\)
\(=\frac{24}{56}+\frac{28}{56}\)
\(=\frac{52}{56}\)
\(=\frac{13}{14}\)
a) 8/15 + 2/3
= 8/15 + 10/15
=18/15
=6/5
b) 3/7 + 4/8
= 24/56 + 28/56
= 56/56
=1
a ) 8/15 + 2/3 b ) 3/7 + 4/8
= 8/15 + 10/15 = 24/56 + 28/56
= 18/15 = 6/5 = 52/56 = 13/14
8/15 + 2/3 = ?
8/15 = 8 x 3/ 15 x 3 = 24/45
2/3 = 2 x15/ 3 x 15 = 30/45
24/45 + 30/45 = 54/45 = 6/5
Vậy 8/15 + 2/3 = 6/5
3/7 + 4/8 = ?
3/7 = 3 x 8/ 7 x 8 = 24/56
4/8 = 4 x 7/ 8 x 7 = 28/56
24/56 + 28/56 = 52/56 = 13/14
Vậy 3/7 + 4/8 = 13/14
8/15+2/3=8/15+!0/15=18/15=6/5
3/7+4/8=24/56+28/56=52/56=26/28=13/14
a)8/15+2/3=8/15+10/15=18/15=6/5
b)3/7+4/8=24/56+28/56=52/56=13/14
8\15+2\3 =18\15=6\5
3\7+4\8=52\56=13\14
a) 8/15 + 2/3 = 8/15 + 10/15 = 18/15 = 6/5
b) 3/7 + 4/8 = 24/56 + 28/56 = 52/56 = 13/14
a,8/15+2/3=8/15+10/15=18/15=6/5
b,3/7+4/8=24/56+28/56=52/56=13/14
8/15 + 2/3 = 8/15 = 10/15 = 6/5
3/7 + 4/8 = 24/56 + 28/56 = 13/14
8/15+2/3=8/15+2×5/3×5=8/15+10/15=18/15=6/5
3/7+4/8=3/7+1/2=3×2/7×2+1×7/2×7=6/14+7/14=13/14
