Question

5/4×..........=7/8

Answer 1

7/10

Answer 2

Đặt `..... = x`

`=> 5/4 xx .... = 7/8`

`=> 5/4 xx x = 7/8`

`=> x = 7/8 : 5/4`

`=> x = 7/8 xx 4/5`

`=> x = 7/10`

Vậy `x = 7/10` hay `... = 7/10`

Answer 3

Ta lấy \(\frac78\) :\(\frac54\) = \(\frac{7}{10}\)

Suy ra chỗ cần điền là \(\frac{7}{10}\)

Answer 4

*Trả lời: \(\frac54\times\frac{7}{10}=\frac78\).

Answer 5

Chuyển .... thành x

\(\frac54\) × x = \(\frac78\)

x = \(\frac78\) : \(\frac54\) = \(\frac78\) × \(\frac45\)

x = \(\frac{28}{40}\) = \(\frac{7}{10}\) .

Answer 6

54x2