Mom bought 13 rolls. Dad ate 3.5 rolls. How many rolls left when Peter yet put two at dinner?


r =  7.5


Solution in text r =

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!

To solve this example are needed these knowledge from mathematics:

Need help calculate sum, simplify or multiply fractions? Try our fraction calculator.

Next similar examples:

  1. Icecreams
    zmrzlina_4 Karthik bought 30 icecreams for his birthday .2/5 of them are chocolate icecreams. Find the number of chocolate icecreams he bought?
  2. Cakes
    cookies_1 On the bowl were a few cakes. Jane ate one-third of them, Dana ate a quarter of those cakes that remained. a) What part (of the original number of cakes) Dana ate? b) At least how many cakes could be (initially) on thebowl?
  3. Package
    latky The package was 23 meters of textile. The first day sold 12.3 meters. How many meters of textile remained in the package?
  4. Cookies
    koláčky Mom bake cookies. Rolo took 2/9 of all cookies, Michal 3/9. How many cookies ate Rolo if Michal had 9.
  5. Roses and tulips
    flowers_3 At the florist are 50 tulips and 5 times less roses. How many flowers are in flower shop?
  6. President
    gasparovic President of Slovakia earns a monthly € 7844 per month. How many times earn than Jimmy's monther salary € 612? 15.3.2014 the presidential election, which decides who will almost effortlessly 5 years to receive such space salary for nothing;)
  7. Reduce to lowest terms
    fractions_16 Reduce to lowest terms : 32/124
  8. Paper collecting
    sber At the paper collecting contest gathered Franta 2/9 ton, Karel 1/4 ton and Patrick 19/36 tons of paper. Who have gathered the most and the least (x, y - write down the weights in tonnes).
  9. Denominator
    fraction_half Calculate the missing denominator x: ?
  10. Mixed2improper
    zlomky_8 Write the mixed number as an improper fraction. 166 2/3
  11. 3 children
    cukr_2 3 children had to divide 4 pounds is candy. How much candy did each child get?
  12. Mixed numbers
    zlomky_10 Rewrite mixed numbers so the fractions have the same denominator: 5 1/5 - 2 2/3
  13. In fractions
    ant An ant climbs 2/5 of the pole on the first hour and climbs 1/4 of the pole on the next hour. What part of the pole does the ant climb in two hours?
  14. What is one third
    decimals What is 1/3 as a decimal? Give your answer rounded to 2 decimal places.
  15. Triangle
    triangles Prove whether you can construct a triangle ABC, if a=9 cm, b=10 cm, c=4 cm.
  16. Roman numerals +
    rome-italy Add up the number writtens in Roman numerals. Write the results as a decimal number.
  17. Roman numerals 2+
    rome-italy_1 Add up the number writtens in Roman numerals. Write the results as a roman numbers.