| We define the least common denominator of two fractions as the least common multiples of the denominators. |
| But Zu would know how to reduce fractions to their lowest terms by dividing top and bottom by the greatest common divisor. |
| Finding the least common multiple is an important skill for further dealings with fractions. |
| Basic operations with whole numbers, fractions, and decimals were required to solve some problems, although many items required no calculations. |
| These include counting beanbags to learn how to add whole numbers, and folding paper strips to learn to deal with fractions. |
| As carbonate rocks weather, the insoluble fractions are introduced into the cave deposits. |
