Sizu Home › Calculators › Adding Fractions with Strips
Opens on Chapter 10’s example: 2/3 + 1/4 = 8/12 + 3/12 = 11/12.
Enter the numbers from the worksheet, then press Show me.
From the book, Chapter 10. 2/3 + 1/4: thirds and quarters are different sizes, so cut both into twelfths: 8/12 + 3/12 = 11/12. Adding tops and bottoms gives 3/7, which is less than 2/3 alone, so it can’t be right. For 4 1/4 − 2 3/4, count up: 1/4 to 3, 1 to 4, 1/4 to 4 1/4, so 1 1/2.
Every step is worked exactly, the way the chapter does it. Everything stays in your browser: no sign-up, nothing stored or sent.