Question

1) -1/4-5/7=? 2)-5/6-1/3=?Полный ответ! ​

Answer 1

Ответ:

- ¼ - 5/7 = - ( 7 + 20 )/28 = - 27/28 ;

- 5/6 - ⅓ = - (5+2)/6 = - 7/6 = - 1 1/6.

Answer 2

1. To subtract fractions, you need to have a common denominator. In this case, the common denominator for -1/4 and -5/7 can be found by finding the least common multiple (LCM) of 4 and 7, which is 28. Then, you'll need to rewrite the fractions with this common denominator and perform the subtraction:

-1/4 = -7/28 (multiply numerator and denominator by 7) -5/7 = -20/28 (multiply numerator and denominator by 4)

Now subtract the fractions:

-7/28 - (-20/28) = -7/28 + 20/28 = 13/28

So, -1/4 - 5/7 = 13/28.

2. Similarly, for -5/6 - 1/3, you need a common denominator. The common denominator here is 6, since it's already the denominator of the first fraction. You'll need to rewrite the second fraction with a denominator of 6:

-5/6 - 1/3 = -5/6 - 2/6 = -7/6

So, -5/6 - 1/3 = -7/6.