Question

1/2+1/4+1/8+1/16 ko quy đồng

Answer 1

15/16

Answer 2

giúp mik với

 

Answer 3

không quy đồng thì tính như nào?

Answer 4

\(\dfrac{1}{2}+\dfrac{1}{4}+\dfrac{1}{8}+\dfrac{1}{16}\)

\(=1-\dfrac{1}{2}+\dfrac{1}{2}-\dfrac{1}{4}+\dfrac{1}{4}-\dfrac{1}{6}+\dfrac{1}{6}-\dfrac{1}{8}+\dfrac{1}{8}-\dfrac{1}{16}\)

\(=1-\dfrac{1}{16}\)

\(=\dfrac{16}{16}-\dfrac{1}{16}\)

\(=\dfrac{15}{16}\)

Toán lớp 1 :))

Answer 5

\(\dfrac{1}{2}+\dfrac{1}{4}+\dfrac{1}{8}+\dfrac{1}{16}\)

\(=1-\dfrac{1}{2}+\dfrac{1}{2}-\dfrac{1}{4}+\dfrac{1}{4}-\dfrac{1}{8}+\dfrac{1}{8}-\dfrac{1}{16}\)

\(=1-\dfrac{1}{16}\)

\(=\dfrac{15}{16}\)

Answer 6

15/16

Answer 7

15/16

Answer 8

không quy đồng thì tính như nào?