Question

Дроби 1/2,3/4,9/10 к знаменателю 20; 2)4/3,1/6,7/1,8/9 к знаменателю 36; 3)1/2,2/4,3/8,5/32 к знаменателю 64; 4)1/5,1/4,7/25,63/50 к знаменателю 100.

Answer 1

К знаменателю 20:

$\tt\displaystyle\frac{1}{2}=\frac{1*10}{2*10}=\frac{10}{20}$

$\tt\displaystyle\frac{3}{4}=\frac{3*5}{4*5}=\frac{15}{20}$

$\tt\displaystyle\frac{9}{10}=\frac{9*2}{10*2}=\frac{18}{20}$

К знаменателю 36:

$\tt\displaystyle\frac{4}{3}=\frac{4*12}{3*12}=\frac{48}{36}$

$\tt\displaystyle\frac{1}{6}=\frac{1*6}{6*6}=\frac{6}{36}$

$\tt\displaystyle\frac{7}{1}=\frac{7*36}{1*36}=\frac{252}{36}$

$\tt\displaystyle\frac{8}{9}=\frac{8*4}{9*4}=\frac{32}{36}$

К знаменателю 64:

$\tt\displaystyle\frac{1}{2}=\frac{1*32}{2*32}=\frac{32}{64}$

$\tt\displaystyle\frac{2}{4}=\frac{2*16}{4*16}=\frac{32}{64}$

$\tt\displaystyle\frac{3}{8}=\frac{3*8}{8*8}=\frac{24}{64}$

$\tt\displaystyle\frac{5}{32}=\frac{5*2}{32*2}=\frac{10}{64}$

К знаменателю 100:

$\tt\displaystyle\frac{1}{5}=\frac{1*20}{5*20}=\frac{20}{100}$

$\tt\displaystyle\frac{1}{4}=\frac{1*25}{4*25}=\frac{25}{100}$

$\tt\displaystyle\frac{7}{25}=\frac{7*4}{25*4}=\frac{28}{100}$

$\tt\displaystyle\frac{63}{50}=\frac{63*2}{50*2}=\frac{126}{100}$