Tìm 3 phân số bằng
a.4/5
b.1/6
c.24/48
Giải giúp các phân số này với ạ cảm ơn
2 câu trả lời
a) $\dfrac{4}{5}$ = $\dfrac{8}{10}$ , $\dfrac{12}{15}$ , $\dfrac{16}{20}$\
b) $\dfrac{1}{6}$ = $\dfrac{2}{12}$ , $\dfrac{3}{18}$ , $\dfrac{4}{24}$
c) $\dfrac{24}{48}$ = $\dfrac{12}{24}$ , $\dfrac{8}{16}$ $\dfrac{1}{2}$
$\text{#Zane#}$
Ta có:
$\dfrac{4}{5}$:
$\dfrac{4}{5}$ = $\dfrac{4×2}{5×2}$ = $\dfrac{8}{10}$
$\dfrac{4}{5}$ = $\dfrac{4×3}{5×3}$ = $\dfrac{12}{15}$
$\dfrac{4}{5}$ = $\dfrac{4×4}{5×4}$ = $\dfrac{16}{20}$
$\dfrac{1}{6}$:
$\dfrac{1}{6}$ = $\dfrac{1×2}{6×2}$ = $\dfrac{2}{12}$
$\dfrac{1}{6}$ = $\dfrac{1×3}{6×3}$ = $\dfrac{3}{18}$
$\dfrac{1}{6}$ = $\dfrac{1×4}{6×4}$ = $\dfrac{4}{24}$
$\dfrac{24}{48}$:
$\dfrac{24}{48}$ = $\dfrac{24÷2}{48÷2}$ = $\dfrac{12}{24}$
$\dfrac{24}{48}$ = $\dfrac{24÷3}{48÷3}$ = $\dfrac{8}{16}$
$\dfrac{24}{48}$ = $\dfrac{24÷4}{48÷4}$ = $\dfrac{6}{12}$


Điền số thích hợp vào ô trống:
Tìm \(x\) biết: \(45 + (1234 + x) = 1234 + (45 + 120)\)