Different denominators: fractions addition

Different denominators: fractions addition worksheet
When adding and subtracting fractions that have the same denominators, you simply calculate with the numerators and ignore the denominators. When calculating with fractions with different denominators, you need to change the fractions so that you can calculate with them. See if you can work out these questions.
Key stage: Year 5, KS2
Subject: Fractions, Maths