Question

3 3/4+1/5=?, 7 9/20+ 7/30

Answer 1

1)3,95
2)7,52
Надеюсь немного помогла

Answer 2

Если вместо пропуска умножение, то
1) 3,95
2)примерно 7,52
вроде верно)

Answer 3

3 + 3/4 + 1/5 = ?

To add these fractions together, we need to find a common denominator. The least common multiple of 4 and 5 is 20.

First, let's convert 3 to a fraction with a denominator of 4: 3 = 3 * 4/4 = 12/4

Now, let's convert 1/5 to a fraction with a denominator of 20: 1/5 = 1/5 * 4/4 = 4/20

Now we can add the fractions: 12/4 + 3/4 + 4/20 = (12 + 3 + 4)/20 = 19/20

So, 3 + 3/4 + 1/5 is equal to 19/20.

Now let's solve the second expression:

7 + 9/20 + 7/30 = ?

To add these fractions together, we need to find a common denominator. The least common multiple of 20 and 30 is 60.

First, let's convert 7 to a fraction with a denominator of 20: 7 = 7 * 20/20 = 140/20

Now, let's convert 9/20 to a fraction with a denominator of 60: 9/20 = 9/20 * 3/3 = 27/60

Now, let's convert 7/30 to a fraction with a denominator of 60: 7/30 = 7/30 * 2/2 = 14/60

Now we can add the fractions: 140/20 + 27/60 + 14/60 = (140 + 27 + 14)/60 = 181/60

So, 7 + 9/20 + 7/30 is equal to 181/60.