Mathematics Grade 7
How to add fractions with different denominators
See how to add 2/3 and 1/4 by finding a common denominator. The public preview explains the method; sign in to view the complete worked answer.
The question
Work out 2/3 + 1/4.
Public preview
Make the pieces the same size
The denominators must match before you add the numerators. Twelfths work here because 12 is a common multiple of 3 and 4; then combine the equal-sized pieces.
Worked answer
See every step, then check your answer.
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