Question

15 and 25 least common multiple

im confused on this
3/7+6/11=
1/3 + 3/4=
4/5 + 3/7=
7/12-1/8=
9/10 -2/3=
I can get the answers i just need some one to do an addtion one and subtracting one and show me how please

Answer 1

if you want to add or subtract fractions :

1- make sure that the denominators of the fractions are equal. if they are not, then multiply each of them by a number so that they will be equal.

2- add or subtract the numerators.(if you already had multiplied the denominator of a fraction by a number, then you should multiply the numerator by the same number and do the adding or subtracting)


3- simplify it's possible


here are the answers :


`(3)/(7) + (6)/(11) = (33 + 42)/(77) = (75)/(77)`



`(1)/(3) + (3)/(4) = (4 + 9)/(12) = (13)/(12) = 1 (1)/(12)`



`(4)/(5) + (3)/(7) = (28 + 15)/(35) = (43)/(35) = 1 (8)/(35)`



`(7)/(12) - (1)/(8) = (14 - 3)/(24) = (11)/(24)`



`(9)/(10) - (2)/(3) = (27 - 20)/(30) = (7)/(30)`


good luck