how do you divide and multiply fractions?

Question

how do you divide and multiply fractions can somone explain how to do this

Answer 1

multiplying fractions: multiply top first and then bottom eg 1/2*1/4
becomes1/8 considering that 1*1 is 1 and 2*4 is 8

dividing: switch the second fraction to its reciprocal (eg 1/2 now becomes 2/1) keep the first fraction the same and multiply the top and then the bottom

Answer 2

including: once you decide on to operate fractions, the denominators (the bottom 1/2 of the fractions) must be an analogous. in the experience that they are, upload the numerators (the suitable 1/2 of the fractions) and positioned that # over the denominator the fractions percentage. celebration- 2/10 + 4/10 = 6/10 If the denominators are distinct, multiply both the numerator and denominator of the fraction(s) so as that the denominators are an analogous. celebration #a million- 2/3 + 2/5 multiply 2*5 and three*5---> new fraction 10/15 multiply 2*3 and three*5---> new fraction 6/15 Then upload like before.... 10/15 + 6/15 = 16/15 or a million a million/15 celebration #2- 4/10 + a million/2 2 must be prolonged by making use of five to get 10, so that you in reality desire to modify the 2d fraction. a million*5 and a couple of*5---> new fraction 5/10 (denominators are an analogous now) 4/10 + 5/10 = 9/10 Subtracting: Subtracting also calls for the denominators to be an analogous. when they are (use the multiplying technique above to assist) you merely subtract the numerators from one yet another. celebration- 6/10 - 2/10 = 4/10 Multiplying: Multiplying is between the finest operations in fractions. All you should do is multiply the numerators by making use of one yet another and the denominators by making use of one yet another (that's typically talked about as 'multiplying for the time of'). it would not count number if the denominators are an analogous once you're multiplying. celebration- 4/6 * 3/5 = 12/30 or 2/5 (2/5 is the simplified version of 12/30). (4*3=12, 6*5=30 ----> 12/30). Dividing: there is not any thanks to really divide fractions, so that you multiply by making use of reciprocals. A reciprocal is (merely) a fragment turn-flopped. Reciprocal Examples- The reciprocal of three/5 is 5/3. The reciprocal of seven/35 is 35/7. The reciprocal of 10 is a million/10 (undergo in ideas 10 is a fragment- it really is 10/a million). The reciprocal of sixty 4 is a million/sixty 4. Dividing/multiplying by making use of reciprocal examples- ( ' / ' stands for divided by making use of) 2/10 / 3/5 ---> (multiply by making use of reciprocal) ameliorations to... 2/10 * 5/3 (then multiply the fractions) 2*5 and 10*3 ---> 10/30 or a million/3 6/30 / 2/12 ---> (multiply by making use of reciprocal) ameliorations to... 6/30 * 12/2 (then multiply the fractions------- 12/2 equals 6) 6/30 * 6.... 6*6 and 30*a million-----> 36/30 i understand all of it sounds complicated yet merely practice it slightly and also you may understand very immediately. i am hoping this facilitates! solid luck on your try!

Answer 3

When you muliply fractions(ex 1/3 x 3/4) multiply straight across but when you divide fractions, flip one of the fractions upside down and then multiply straight across

Answer 4

On the dividing part you have to turn the second fraction upside down and turn the dividing sign into multiplication.

Answer 5

The easy way.

You multiply so:

(a/b)(c/d) = ac/bd

And you divide so:


(a/b)/(c/d) = (a/b)(d/c)

Ana

Answer 6

Easy, we have:

(A/B) x (C/D) = AC/BD

(A/B) / (C/D) = AD/BC

THAT Simple!!!

Answer 7

(a/b)*(c/d)=ac/bd

(a/b)/(c/d)=(a/b)*(d/c)=ad/bc