What I Have Learned
Answer the following questions.
1. How to add and subtract rational numbers in fraction form?
2. How to multiply rational numbers in fraction form?
3. How to divide rational numbers in fraction form?
4. How to add and subtract rational numbers in decimal form?
5.How to multiply rational numbers in decimal form?
6. How to divide rational numbers in decimal form?
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Answers & Comments
Answer:
1.
-Write all fractions as equivalent fractions with a common denominator.
-Combine the fractions as a single fraction that has the common denominator.
-Simplify the expression in the top of the fraction.
-Reduce the fraction to lowest terms.
2.
-You simply multiply the nominators (top) and the denominators (bottom):
-After this, you might have to simplify if asked to do so.
3.
-When two fractions are given to divide as
a/b ÷ c/d
-You take the reciprocal of the second fraction and multiply with the first fraction.
a c a d ad
— ÷ — = — × — = —
b d b c bc
4.
It is the same as to normal adding and subtracting, but the decimal points have to be lined up.
(ikaw na po bahala sa 5 and 6 kc busy pa ako haha.)