tính hợp lí:
32/3.7 + 6/7.41 + 9/41.10 + 1/ 10.51 + 19/51.14
nhanh hộ mik vs ạ, ai làm nhanh mà đúng thì mik tick cho, cảm ơn
A = 4 / 7x31 + 6 / 7x41 +9 / 10 x41 + 7 / 10 x57
B = 7 / 19 x 31 + 5 / 19 x 43 + 3 / 23 x43 + 11 / 23 x 57
A/B = ????
A=4/7x31+6/7x41+9/10x41+7/10x57
B=7/19X31+5/19/43X3/23X43+11/23X57
Tính A/B
tinh nhanh 4/7x3+6/7x41+9/10x41+7/10x57
\(\frac{4}{7x31}+\frac{6}{7x41}+\frac{9}{10x41}+\frac{7}{10x57}\)
Tính tỷ số A/B biết :A=4/7.31+6/7.41+9/10.41+7/10.51 ; B=7/19.31+5/19.43+3/23.43+11/23.57
A= 4/7X31+6/7X41+9/10X41+7/10X57
B= 7/19X31+5/19X43+3/23X48+11/23X57
Tính A/B