K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

DD
16 tháng 9 2021

\(\frac{1234\times567-667}{567+1234\times566}=\frac{1234\times\left(566+1\right)-667}{567+1234\times566}=\frac{1234\times566+1234-667}{567+1234\times566}\)

\(=\frac{1234\times566+567}{567+1234\times566}=1\)

18 tháng 7 2019

\(\frac{637\times527-189}{526\times637+448}\)

\(=\frac{637\times\left(526+1\right)-189}{526\times637+448}\)

\(=\frac{637\times526+637-189}{526\times637+448}\)

\(=\frac{637\times526+448}{526\times637+448}\)

\(=1\)

18 tháng 7 2019

\(\frac{677\times874+251}{678\times874-623}\)

\(=\frac{677\times874+251}{\left(677+1\right)\times874-623}\)

\(=\frac{677\times874+251}{677\times874+874-623}\)

\(=\frac{677\times874+251}{677\times874+251}\)

\(=1\)

18 tháng 7 2019

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

c) 637 x 527 - 189=335510  /  526 x 637 + 448=335510

d) 677 x 874 + 251 =591949 /  678 x 874 - 623=591949

học tốt

c, 637x527-189/526x637+448=335918,116

d, 677x874+251/678x874-623=91398,5605

18 tháng 7 2019

saaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaadaaaaaaaaaaaaaaaaaaaaaaaaaaaaaoaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

18 tháng 7 2019

2 nick là 1 ng ??????

1 tháng 4 2017

a)  637 x 527 - \(\frac{189}{526}\)x 637 + 448

cai này ra số thập phân đấy

 Bằng 335918,116

b) cái này cũng thế nốt

\(\frac{637\times527-189}{526\times637+448}=\frac{527-189}{526+448}\)

                                    \(=\frac{338}{974}=\frac{169}{487}\)

b) \(\frac{677\times874+251}{678\times874-623}=\frac{677+251}{678-625}\) 

                                      \(=\frac{918}{55}\)

đúng thì ủng hộ 

26 tháng 4 2016

cau tra loi thu nhat = 592309

cau tra loi thu hai 592309

k mik nha

26 tháng 4 2016

a) Số cần tìm là:

677x874+611=592309

b) Số cần tìm là:

678x874-263=592309

Đáp số:592309