Giải thích các bước giải:
h) MSC:10
Ta có:
$\frac{2}{10}$ = $\frac{2 . 1}{10 . 1}$ = $\frac{2}{10}$
$\frac{9}{5}$ = $\frac{9 . 2}{5 . 2}$ =$\frac{18}{10}$
i) MSC:16
Ta có:
$\frac{53}{16}$ = $\frac{53 . 1}{16 . 1}$ = $\frac{53}{16}$
$\frac{3}{4}$ =$\frac{3 . 4}{4 .4 }$ = $\frac{12}{16}$
k) MSC:5
Ta có:
1=$\frac{1.5}{1.5}$ = $\frac{5}{5}$
$\frac{4}{5}$ = $\frac{4.1}{5.1}$ =$\frac{4}{5}$
m) MSC: 9
Ta có:
$\frac{5}{9}$ =$\frac{5.1}{9.1}$ =$\frac{5}{9}$
2= $\frac{2.9}{1.9}$=$\frac{18}{9}$
n) MSC:5
Ta có:
$\frac{9}{5}$ =$\frac{9.1}{5.1}$ =$\frac{9}{5}$
3=$\frac{3.5}{1.5}$ = $\frac{15}{5}$
p)MSC:4
Ta có:
4=$\frac{4.4}{1.4}$ = $\frac{16}{4}$
$\frac{3}{4}$ = $\frac{3.1}{4.1}$ = $\frac{3}{4}$
