Add and Subtract Unlikes

Worksheet Description

You will need to restructure these fractions to make them work for you.   You will find the common denominator and convert the pair to like fractions. You do not need to simplify your answers here. This worksheet is a practice tool that focuses on the operations of addition and subtraction with fractions. It provides students with pairs of “unlike” fractions, which means they have different denominators, and guides them through the process of finding a common denominator using the Least Common Denominator (LCD) method. Each exercise includes a set of multiplication tables to assist in finding the LCD, and then students are instructed to rewrite each fraction with this common denominator before performing the addition or subtraction. The format of the worksheet is clear and structured, providing a visual multiplication table and ample space for calculations.

The educational intent of this worksheet is to help students develop the ability to add and subtract fractions with different denominators by first finding a common base. It teaches the importance of the LCD in simplifying complex fraction problems and enables students to practice this fundamental concept without the additional step of simplifying their answers. Through this exercise, students will gain confidence in manipulating fractions and enhance their number sense regarding fraction operations.