1. 2 3/5+ 3 4/5 Rewrite the mixed numbers as fractions;
= 13/5 + 19/5 Write the sum of the numerators over the common denominator;
= (13 + 19)/5
= 32/5 Rewrite the fraction as a mixed number;
= 6 2/5
2. -2 1/5 + (- 4 5/8) Rewrite the mixed numbers as fractions;
= -11/5 + (-37/8) Multiply by 8/8 the first fraction, and by 5/5 the second fraction in order to have the same denominator (because LCD is 40);
= -88/40 + (-185/40) Write the sum of the numerators over the common denominator;
= -(88 + 185)/40
= -273/40 Rewrite the fraction as a mixed number;
= -6 33/40
Chat with our AI personalities
to multiply fractions add them together and reduce the final fraction. to multiply mixed numbers, first make the mixed number an improper fraction, by mulitplying the whole number and the denominator and adding the answer to the numerator. Example: The improper fraction 8/5 can be changed to the mixed number 1 3/5 by dividing the numerator (8) by the denominator (5). This gives a quotient of 1 and a remainder of 3. The remainder is placed over the divisor (5).
That is correct.
If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.
adding fractions r easy math prblems. like 1/4 +1/4 = 1/2.
You basically have to learn separately how to do different things with fractions, including finding a common denominator; converting fractions to a different denominator; simplifying fractions; adding and subtracting fractions; multiplying fractions; dividing fractions.