Question

9/4+8/5= вычислите пж

Answer 1

2 1/4 + 1 3/5 = 3 + ( 1/4 + 3/5) = 3 + (5/20 + 12/20)= 3 17/20

Answer 2

...=45/20+36/20=81/20=4(1/20)=4.05

Answer 3

To add these fractions, we need to find a common denominator.

One way to do this is to find the least common multiple (LCM) of the denominators, which is the smallest number that both 4 and 5 divide into evenly. In this case, the LCM is 20.

Then, we can convert each fraction so that it has a denominator of 20:

9/4 = (9/4) * (5/5) = 45/20 8/5 = (8/5) * (4/4) = 32/20

Now we can add the two fractions:

45/20 + 32/20 = (45 + 32) / 20 = 77/20

Therefore, 9/4 + 8/5 = 77/20.