Fractions · Math worksheet

Adding Fractions With Like Denominators

Name:Date:Adding Fractions With Like DenominatorsAdd the fractions.1.17+57=2.49+49=3.57+17=4.14+14=5.112+212=6.15+25=7.15+15=8.111+111=9.812+312=10.29+19=11.25+35=12.28+28=13.311+711=14.13+13=15.12+12=16.15+45=17.36+36=18.112+112=19.17+47=20.512+112=
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Twenty addition problems where both fractions share a denominator, such as 2/9 + 5/9. Add the top numbers and keep the bottom one. No sum is more than one whole, and the answer key shows the simplest form wherever there is one, as in 6/8 = 3/4.

Shapes
Denominators
fromto

The bottom numbers, from 2 to 12. 2 to 4 keeps to halves, thirds and fourths.

Digits

Base-ten blocks go up to 3 digits: hundreds, tens and ones.

Clocks
Layout
Paper
Numbers10 to 99 and 10 to 99
First number
fromto
Second number
fromto

Leave at 0 for no limit. 10 makes “addition within 10”.

Regrouping

Carrying and borrowing, for addition and subtraction.

For a classOne sheet, answer keys

Each sheet has its own problems: one per student or one per day.

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2 pages: 1 to solve, 1 with the answers

Ideas for using these sheets

  • Draw one bar for the denominator and shade both fractions on it, one color each.
  • Ask why the bottom number stays the same: the parts are still eighths.
  • Leave simplifying as an extra step for children who are ready for it.

Every setting can be changed above before you print, and “New problems” makes a fresh sheet as often as you like.

Adding Fractions With Like Denominators: printable math worksheet with 20 problems and an answer key, from a free math worksheet generator

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