Drag and drop the fractions to order them from least to greatest. -4/5
-3/7
2/3
1/4

-4/5, -3/7, 1/4, 2/3

Step-by-step explanation:

We already know that the negative fractions are less then the positive ones. So we can start with the negative fractions: We want to make them have the same denominator. For that we just multiply the current denominators:

5 × 7 = 35.

Then we multiply the numerator by the other fractions denominator for the fraction to remain still the same:

4 × 7 = 28

5 × 3 = 15

Now the fractions are:

-28/35 and -15/35. Because they are negative the ones with bigger numerators are less.

Then we do the same with the positive fractions:

3 × 4 = 12

1 × 3 = 3

2 × 4 = 8

8/12 and 3/12.

‘Then we can order them:

-28/35, -15/35, 3/12, 8/12

-4/5    , -3/7     , 1/4  , 2/3

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons