Fraction stories, same whole: 4th grade math lesson

What this lesson shows

A pizza story drawn and written as an equation, both ways.

The worked example

The lesson works this one step by step: 3/8 + 2/8. Then your kid tries one like it on paper.

The steps

Draw the whole
Mark each share
Add for in all
Subtract for what is left

Helping at home

Draw the whole and cut it into the story’s parts. Mark each person’s share, then write an equation: add for in all, subtract from the whole for what is left.

If your kid gets stuck

Draw the pizza, then write two equations.

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.

See how Lux works

Standards

Common Core 4.NF.B.3d
Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

Matches a standard in all 50 states and DCSee each state's code

Alabama MA19.4.15c
Alaska 4.NF.3.d
Arizona 4.NF.B.3.d, 4.NF.A.2.b
Arkansas 4.NPV.5, 4.CAR.9
California 4.NF.B.3
Colorado 4.NF.B.3.d
Connecticut 4.NF.B.3
Delaware 4.NF.B.3
District of Columbia 4.NF.B.3
Florida MA.4.AR.1.2
Georgia 4.NR.4.3, 4.NR.4.4, 5.NR.3.2
Hawaii 4.NF.B.3
Idaho 4.NF.A.2.b, 4.NF.B.3.d
Illinois 4.NF.B.3
Indiana 5.NS.1, 4.CA.6, 4.CA.8
Iowa 4.NF.A.2, 4.NF.B.3.d
Kansas 4.NF.3.d
Kentucky KY.4.NF.3.b, KY.4.NF.3.d, KY.4.NF.2
Louisiana 4.NF.B.3.b, 4.NF.B.3.d
Maine 4.NF.B.3d
Maryland 4.NOS.D.10.a, 4.NOS.E.12.d
Massachusetts 4.NF.B.3.d
Michigan 4.NF.B.3
Minnesota 4.1.2.2, 4.1.2.3, 5.1.2.3
Mississippi 4.NF.3.d
Missouri 4.NF.A.3, 4.NF.B.6, 5.NF.A.3
Montana MT.4.NF.3.a, MT.4.NF.3.d, 4.D1.2, 4.D4.1, 4.D5
Nebraska 4.N.2.c, 4.N.3.c, 5.N.2.b
Nevada 4.NF.B.3
New Hampshire 4.NF.B.3
New Jersey 4.NF.B.3d
New Mexico 4.NF.B.3
New York NY-4.NF.2, NY-4.NF.3.d
North Carolina NC.4.NF.3.d
North Dakota 4.NO.NF.5, 4.NO.NF.6
Ohio 4.NF.3.d
Oklahoma 4.N.3.2, 4.N.3.3, 5.N.1.3
Oregon 4.NF.A.2, 4.NF.B.3
Pennsylvania CC.2.1.4.C.2
Rhode Island 4.NF.B.3.a, 4.NF.B.3.d
South Carolina 4.NR.2.4, 4.NR.2.6, 5.NR.2.1, 4.PAFR.2.1, 3.NR.2.4, 4.NR.2.5
South Dakota 4.NF.B.3.d
Tennessee 4.NF.A.2, 4.NF.B.3.d
Texas 111.6.b.3.A, 111.6.b.3.D, 111.6.b.3.E, 111.6.b.3.F, 111.6.b.3.G
Utah 4.NF.3.d
Vermont 4.NF.B.3
Virginia 3.NS.3b, 3.NS.3e, 4.CE.3b, 4.NS.3a, 4.NS.3b, 4.NS.3c, 4.NS.3d
Washington 4.NF.B.3
West Virginia M.4.14
Wisconsin M.4.NF.A.2, M.4.NF.B.3
Wyoming 4.NF.2a, 4.NF.2b, 4.NFP.2.A, 4.NFP.2.B, 4.NF.3d, 4.NFP.3.D

Fraction stories, same whole