Số ?
Giải thích
Lời giải
a)\(\frac{3}{{10}} + \frac{4}{{10}} = \frac{7}{{10}}\) | b)\(\frac{9}{6} + \frac{3}{6} = \frac{{11}}{6}\) | c)\(\frac{{13}}{{23}} + \frac{8}{{23}} = \frac{{21}}{{23}}\) |
Lời giải
a)\(\frac{3}{{10}} + \frac{4}{{10}} = \frac{7}{{10}}\) | b)\(\frac{9}{6} + \frac{3}{6} = \frac{{11}}{6}\) | c)\(\frac{{13}}{{23}} + \frac{8}{{23}} = \frac{{21}}{{23}}\) |