adelaidegladebrooke adelaidegladebrooke

22-02-2020
Mathematics

contestada

In 1/a-b - 1/b-a
Why do we multiply the fraction by -1 to get the common denominator?
I factorised the denominators and got the wrong answer.
The answer is 2/a-b
Please explain, thank you

Respuesta :

ridhamahdi92 ridhamahdi92

22-02-2020

Idk but better then I have the same thing to call me and my friend told him I don’t want him to

Answer Link

Otras preguntas

Name the intersection of AD and DF

can we add 4x and 3y? why?

purchased goods for RS 1000 from arun find debit and credit

1. Which of these sequences of transformations would not return a figure to its original position? A. Reflect a figure across line q, and then reflect the image

Tyron made 60 cakes. He gave 20% of his cakes to Ana . And 1/6 of his cakes to Dora. What fraction of the 60 cakes does he have left?

19. Rashmika bought a second hand T.V. for Rs. 6,000 and she spent Rs. 1500 on its repair. She sold it for Rs. 5,500. Find her profit or loss.

_____ act as glue in sentences and join words or groups of words together. A. Prepositions. B. Inter

Find the arc length of the partial circle. Either enter an exact answer in terms of π or use 3.14 πpi and enter your answer as a decimal

Mustufa ran the 100-meter and 200-meter races but the one he had trained for the hardest was the 400-meter competition. Which is the best revision of this sente

Ms. Jones has lab results that indicate as normally low levels of blood calcium. Which gland might be involved? Which hormone is lacking in this condition