Question

4 1\5-2 3\10( напишите все подробно!)

Answer 1

4 1/15  -  2 3/10 = 61/15  -  23/10 =122/30  -  69/30 =  53/30 = 1 23/30

Answer 2

To subtract these two mixed numbers, we need to first convert them into improper fractions.

Converting 4 1/5 to an improper fraction:

4 1/5 = (4 x 5 + 1)/5 = 21/5

Converting 2 3/10 to an improper fraction:

2 3/10 = (2 x 10 + 3)/10 = 23/10

Now we can substitute these values into the expression and simplify:

4 1/5 - 2 3/10 = 21/5 - 23/10

To subtract these two fractions, we need a common denominator, which in this case is 10:

21/5 - 23/10 = (21 x 2)/(5 x 2) - 23/10 = 42/10 - 23/10

Now we can subtract the numerators:

42/10 - 23/10 = 19/10

Therefore, 4 1/5 - 2 3/10 = 19/10 expressed as an improper fraction, or 1 9/10 as a mixed number.