Question

The 5. one please 100 points

Answer 1

`\\ \sf\longmapsto (6)/(10)-(1)/(5)+(1)/(4)`

`\\ \sf\longmapsto (2-4+5)/(20)`

`\\ \sf\longmapsto (-2+5)/(20)`

`\\ \sf\longmapsto (3)/(20)`

Answer 2

Ok so 5 and tens least common denominator is 10. So 6/10- 2/10 (1/5×2=2/10)= 4/10. so now take 4/10 and 1/4 and find the lcm Which is 20 so 4/10×2 is 8/20+10/20=

18/20