ContactExtras30To add or subtract fractions with different denominators, change the fractions toequivalent fractions with the same denominator. The new denominator is the leastcommon denominator (LCD).Question 22What is18+ 1 / 2? Give your answer as a mixed fraction.3 1/2© ©4 418476I don't knowOne attemptYou answered 1 out of 1 correctly. Asking up to 9.