The answer is cross products.
you have to multiply numerators and denominators because whatever you do to the bottom you have to do to the top
No. Convert them to like denominators and add the numerators.
If the denominators are the same, subtract the numerators. If the denominators are different, convert them to equivalent fractions with a common denominator and subtract the numerators.
No, the LCM of the denominators.
If denominators (bottom numbers) are the same,subtract numerators (top numbers).If not you need to make the denominators the same and then subtract numerators.
numerators and denominators are both part of a fraction. the numerator is on top and the denominator is on the bottom. for example, in 2/3, 2 is the numerator and 3 is the denominator
First you have to compare the whole numbers. When the whole numbers are the same, compare the fractions. If the denominators of the fraction are the same, compare the numerators. If the denominators are different, convert them to have the least common denominators. Then compare the numerators.
with different denominators, just get their lcd and that will serve as they're denominator.
Yes, 'fractions' with different numerators can be added, but not with different denominators. In the case where you have different denominators, you must find the LCM (lowest common multiple).
To multiply fractions, multiply the numerators by the numerators, and the denominators by the denominators, and then (if possible) simplify the resulting fraction. For example, 2/3 x 4/5 = 8/15