1) 7/8 : 7/16 = = 2
2) 3/5 : 11/15 =
3) 27/40 : 18/35 =
4 )1 : 8/9 = 1 * 9/8 = 9/8
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Answers & Comments
1) 7/8 : 7/16 =
= 2
2) 3/5 : 11/15 =![\frac{3*15}{5*11} = \frac{9}{11} \frac{3*15}{5*11} = \frac{9}{11}](https://tex.z-dn.net/?f=%5Cfrac%7B3%2A15%7D%7B5%2A11%7D%20%3D%20%5Cfrac%7B9%7D%7B11%7D)
3) 27/40 : 18/35 =![\frac{27*35}{40*18} = \frac{3*7}{8*2} = \frac{3*7}{8*2} = 21/16 = 1 \frac{5}{16} \frac{27*35}{40*18} = \frac{3*7}{8*2} = \frac{3*7}{8*2} = 21/16 = 1 \frac{5}{16}](https://tex.z-dn.net/?f=%5Cfrac%7B27%2A35%7D%7B40%2A18%7D%20%3D%20%5Cfrac%7B3%2A7%7D%7B8%2A2%7D%20%3D%20%5Cfrac%7B3%2A7%7D%7B8%2A2%7D%20%3D%2021%2F16%20%3D%201%20%5Cfrac%7B5%7D%7B16%7D)
4 )1 : 8/9 = 1 * 9/8 = 9/8