Exercise 106 Page 49

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 4/5 + 3/4 Notice that 20 is the least common multiple of 5 and 64. In this case, we can multiply both the numerator and denominator of 45 by 4 to create an equivalent fraction with a common denominator.

Next, let's multiply both the numerator and the denominator of 34 by 5 to create a common denominator.

Now that we have a common denominator, we can add the fractions and simplify the expression.

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 6/7 - 2/5 Notice that 35 is the least common multiple of 7 and 5. In this case, we can multiply both the numerator and denominator of 67 by 5 to create an equivalent fraction with a common denominator.

Next, we multiply both the numerator and the denominator of 25 by 7 to create a common denominator.

Now that we have a common denominator, we can subtract the fractions and simplify the expression.