Question

помогите прошу !!!!!!!!!!!!!!!!!!!!!!

Answer 1

6.67. 1) 5/4x×2x/3=5/6
2) a^2/8×4/a=a/2
3) 6b/7y×14/3b=4/y
4) p^2/18×36/p=2p
5) 9/2m×5m/3=15/2=7 1/2
6) 12/7p×p^3/12q=p^2/7q
6.68. 1) 48a^4/49b^4×7b^2/16a^2=3a^2/7b^2
2) 2n/5m^3×10m^5=4m^2n
3) 25y^2/16x:y^3/x^2=25y^2/16x×x^2/y^3=25x/16y
4) 6xy^2:3y^2/4x=6xy^2×4x/3y^2=8