Identify LCD: Identify the least common denominator (LCD) for the fractions21 and 61. The denominators are 2 and 6. The LCD for 2 and 6 is 6.
Convert fractions: Convert each fraction to an equivalent fraction with the LCD as the denominator.For 21, multiply the numerator and denominator by 3 to get 63.For 61, the fraction is already with the LCD as the denominator, so it remains 61.
Add equivalent fractions: Add the equivalent fractions.Now that both fractions have the same denominator, add the numerators: 63+61=6(3+1).
Perform addition: Perform the addition of the numerators.Adding the numerators gives us 64.
Simplify fraction: Simplify the fraction, if possible.The fraction 64 can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 2.So, 64÷22=32.
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