Question

Tính :

a) 20/16 - 3/4     b)30/ 45 - 2/5   c)10/12 - 3/4   d) 12/9 - 1/4

Answer 1

a,1/2

b,4/15

c,1/12

d,13/12

k mk nhé

Answer 2

\(\frac{20}{16}-\frac{3}{4}=\frac{5}{4}-\frac{3}{4}=\frac{2}{4}=\frac{1}{2}\)

\(\frac{30}{45}-\frac{2}{5}=\frac{2}{3}-\frac{2}{5}=\frac{10}{15}-\frac{6}{15}=\frac{4}{15}\)

\(\frac{10}{12}-\frac{3}{4}=\frac{10}{12}-\frac{9}{12}=\frac{1}{12}\)

\(\frac{12}{9}-\frac{1}{4}=\frac{4}{3}-\frac{1}{4}=\frac{16}{12}-\frac{3}{12}=\frac{13}{12}\)

Answer 3

Cách trình bày nha bạn !!!!