Question

so sánh hai phân số

a) \(\frac{102}{97}\) và \(\frac{99}{101}\)

b) \(\frac{-5}{14}\) và \(\frac{-4}{11}\)

c) \(M=\frac{101^{102}+1}{101^{103}+1}\) và \(N=\frac{101^{103}+1}{101^{104}+1}\)

rút gọn phân số 

a) \(\frac{15.8+15.4}{12.3}\)

b) \(G=\frac{\frac{3}{41}-\frac{12}{47}+\frac{27}{53}}{\frac{4}{41}-\frac{16}{47}+\frac{36}{53}}\)

 

Answer 1

a)Ta có:

\(\frac{99}{101}

Answer 2

a)Tu so:

15.8+15.4

=5.3.2.4+5.3.4

=12.10+12.5

=12.15

=>\(\frac{12.15}{12.3}=\frac{12}{12}.\frac{15}{3}=\frac{15}{3}=5\)

Answer 3

       

b) G=3/41-12/47+27/53//4/41-16/47+36/53

      =18/47// 24/47

      = 18/47 . 47/24

      = 18/24

      = 3/4

xin loi ban vi may minh ko go dc phan so. du sao cung chuc ban hoc tot!
 

Answer 4

Rút gọn phân số:
a) \(\frac{15.8+15.4}{12.3}\)= \(\frac{3.5.\left(8+4\right)}{12.3}\)=\(\frac{3.5.12}{12.3}\)=\(5\)
 

Answer 5

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