Some strategies for adding fractions with unlike denominators include finding a common denominator, converting mixed numbers to improper fractions, or using visual models like fraction bars.
To subtract a fraction from a mixed number, you can convert the mixed number to an improper fraction, find a common denominator, and then perform the subtraction operation.
Having equal denominators is important when adding or subtracting fractions because it allows us to combine or compare fractional parts accurately. Equal denominators ensure that we are working with equivalent fractions.