Question

tính tổng:

a.3/4+1/5  b.1/36+5/12   c.3/4+1/6 

mình đang cần gấp,ai nhanh mình tick cho nha

Answer 1

a

\(\frac{3}{4}+\frac{1}{5}\)

\(=\frac{15}{20}+\frac{4}{20}\)

\(=\frac{19}{20}\)

b 

\(\frac{1}{36}+\frac{5}{12}\)

\(\frac{5}{12}=\frac{5\times3}{12\times3}=\frac{15}{36}\)

\(\frac{1}{36}+\frac{15}{36}=\frac{16}{36}=\frac{4}{9}\)

c

\(\frac{3}{4}+\frac{1}{6}\)

\(=\frac{18}{24}+\frac{4}{24}\)

\(=\frac{22}{24}=\frac{12}{11}\)

Answer 2

TL

a)3/4+1/5=19/20

b)1/36+5/12=4/9

c) 3/4+1/6=11/12

HT