What this lesson shows
18 brownies among 5: 18/5, or 3 3/5 each.
The worked example
The lesson works this one step by step: 18 ÷ 5. Then your kid tries one like it on paper.
The steps
- Wholes first
- Cut the leftovers
- Both ways: 18/5 = 3 3/5
Helping at home
Give out whole things first, using a times fact. Cut each leftover into as many pieces as there are people, and each person takes 1 piece from each. The leftover is the top and the people are the bottom. The share is both a fraction and a mixed number: 18/5 = 3 3/5.
If your kid gets stuck
Wholes first, then cut the leftovers.
Watch it with Lux
With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.
Standards
- Common Core 5.NF.B.3
Interpret a fraction as division of the numerator by the denominator (a/b = a ÷ b). Solve word problems involving division of whole numbers leading to answers in the form of fractions or mixed numbers, e.g., by using visual fraction models or equations to represent the problem. For example, interpret 3/4 as the result of dividing 3 by 4, noting that 3/4 multiplied by 4 equals 3, and that when 3 wholes are shared equally among 4 people each person has a share of size 3/4. If 9 people want to share a 50-pound sack of rice equally by weight, how many pounds of rice should each person get? Between what two whole numbers does your answer lie?
Matches standards in 50 statesSee each state's code
- Alabama MA19.5.7, MA19.5.11a, MA19.5.11b
- Alaska 5.NF.3
- Arizona 5.NF.B.3, 5.NBT.B.6
- Arkansas 5.CAR.2, 5.CAR.6, 5.CAR.10
- California 5.NF.B.3
- Colorado 5.NF.B.3
- Connecticut 5.NF.B.3
- Delaware 5.NF.B.3
- District of Columbia 5.NF.B.3
- Florida MA.5.NSO.2.2, MA.5.FR.1.1
- Georgia 5.NR.2.2, 5.NR.3.1
- Hawaii 5.NF.B.3
- Idaho 5.NBT.A.6.a, 5.NF.B.3
- Illinois 5.NF.B.3
- Indiana 5.CA.1, 5.NS.2
- Iowa 5.NF.B.3
- Kansas 5.NF.3
- Kentucky KY.5.NF.3, KY.5.NBT.6.a
- Louisiana 5.NF.B.3
- Maine 5.NF.B.3
- Maryland 5.NOS.D.10
- Massachusetts 5.NF.B.3
- Michigan 5.NF.B.3
- Minnesota 5.1.1.1, 5.1.2.4
- Mississippi 5.NF.3
- Missouri 5.NF.A.2
- Montana MT.5.NF.3, 5.D1.8, 5.D3.3
- Nebraska 5.N.2.a, 5.N.3.a, 5.A.1.b
- Nevada 5.NF.B.3
- New Hampshire 5.NF.B.3
- New Jersey 5.NF.B.3
- New Mexico 5.NF.B.3
- New York NY-5.NF.3
- North Carolina NC.5.NF.3.a, NC.5.NF.3.b, NC.5.NF.3.c
- Ohio 5.NF.3
- Oklahoma 5.N.2.2, 5.N.2.3
- Oregon 5.NBT.B.6, 5.NF.B.3
- Pennsylvania CC.2.1.5.C.2
- Rhode Island 5.NF.B.3
- South Carolina 5.PAFR.1.2, 4.PAFR.2.4
- South Dakota 5.NF.B.3, 5.NBT.B.6
- Tennessee 5.NF.B.3
- Texas 111.5.b.3.E, 111.7.b.3.C
- Utah 5.NF.3
- Vermont 5.NF.B.3
- Virginia 5.NS.1a, 4.NS.3g
- Washington 5.NF.B.3
- West Virginia M.5.13
- Wisconsin M.5.NF.B.3
- Wyoming 5.NF.3