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\(\frac{1234\times567-667}{567+1234\times566}=\frac{1234\times\left(566+1\right)-667}{567+1234\times566}=\frac{1234\times566+1234-667}{567+1234\times566}\)
\(=\frac{1234\times566+567}{567+1234\times566}=1\)
\(\frac{637\times527-189}{526\times637+448}\)
\(=\frac{637\times\left(526+1\right)-189}{526\times637+448}\)
\(=\frac{637\times526+637-189}{526\times637+448}\)
\(=\frac{637\times526+448}{526\times637+448}\)
\(=1\)
\(\frac{677\times874+251}{678\times874-623}\)
\(=\frac{677\times874+251}{\left(677+1\right)\times874-623}\)
\(=\frac{677\times874+251}{677\times874+874-623}\)
\(=\frac{677\times874+251}{677\times874+251}\)
\(=1\)
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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
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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
cau tra loi thu nhat = 592309
cau tra loi thu hai 592309
k mik nha
a) Số cần tìm là:
677x874+611=592309
b) Số cần tìm là:
678x874-263=592309
Đáp số:592309