Question

Tính bằng cách thuận tiện nhất trên quả đất :

1/8+1/12+3/8+5/12​

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Answer 1

\(\frac{1}{8}+\frac{1}{12}+\frac{3}{8}+\frac{5}{12}\)

\(=\left(\frac{1}{8}+\frac{3}{8}\right)+\left(\frac{1}{12}+\frac{5}{12}\right)\)

\(=\frac{4}{8}+\frac{6}{12}\)

\(=\frac{1}{2}+\frac{1}{2}=\frac{1+1}{2}=\frac{2}{2}=1\)

Answer 2

1/8 + 1/12 + 3/8 + 5/12

= ( 1/8 + 3/8 ) + ( 1/12 + 5/12 )

=     4/8  + 6/12

=    1/2 + 1/2 

=          2/2

= 1 

Chúc học giỏi !!!

Answer 3

\(\frac{1}{8}+\frac{1}{12}+\frac{3}{8}+\frac{5}{12}\)

\(=\left(\frac{1}{8}+\frac{3}{8}\right)+\left(\frac{1}{12}+\frac{5}{12}\right)\)

\(=\frac{1}{2}+\frac{1}{2}\)

\(=1\)

Answer 4

\(\frac{1}{8}+\frac{1}{12}+\frac{3}{8}+\frac{5}{12}\)

\(=\left(\frac{1}{8}+\frac{3}{8}\right)+\left(\frac{1}{12}+\frac{5}{12}\right)\)

\(=\frac{4}{8}+\frac{6}{12}=\frac{1}{2}+\frac{1}{2}\)

\(=1\)

Answer 5

\(\frac{1}{8}+\frac{1}{12}+\frac{3}{8}+\frac{5}{12}\)

\(=\left(\frac{1}{8}+\frac{3}{8}\right)+\left(\frac{1}{12}+\frac{5}{12}\right)\)

= \(\frac{1}{2}+\frac{1}{2}\)

\(=\frac{2}{2}=1\)

Answer 6

\(=\left(\frac{1}{8}+\frac{3}{8}\right)+\left(\frac{1}{12}+\frac{5}{12}\right)=\frac{4}{8}+\frac{6}{12}=\frac{1}{2}+\frac{1}{2}=1\)

Answer 7

\(\frac{1}{8}+\frac{1}{12}+\frac{3}{8}+\frac{5}{12}\)

\(=\left(\frac{1}{8}+\frac{3}{8}\right)+\left(\frac{1}{12}+\frac{5}{12}\right)\)

\(=\frac{4}{8}+\frac{6}{12}\)

\(=\frac{1}{2}+\frac{1}{2}\)

\(=\frac{2}{2}\)

\(=1\)

Answer 8

1/8+1/12+3/8+5/12

= (1/8+3/8) + ( 1/12 + 5/12 )

= 4/8 +6/12

= 0,5 + 0,5

= 1

Answer 9

=(1/8+3/8)+(1/12+5/12)

=4/8+6/12

=1/4+1/6

=3/12+2/12

=5/12

Chúc bạn hok tốt!

Answer 10

1/8+1/12+3/8+5/12

=(1/8+3/8)+(1/12+5/12)

=4/8+6/12

=1/2+1/2

=1

Answer 11

\(\frac{1}{8}+\frac{1}{12}+\frac{3}{8}+\frac{5}{12}\)

\(=\left[\frac{1}{8}+\frac{3}{8}\right]+\left[\frac{1}{12}+\frac{5}{12}\right]\)

\(=\frac{1}{2}+\frac{1}{2}=1\)

Answer 12

=(1/8 + 1/12 + 5/12) +3/8

=7/12+3/8

=23/24

Answer 13

tim cac phan so vua lon hon 3/5 vua be hon 4/5 va deu co tu so bang 12