Question

(7 9/17 + 4 4/13) -(6 9/17+3 9/17+3 9/13)

Answer 1

1)79/17+44/13=1027+748/221=1775/221 2)69/17+39/17+39/13=897+507+663/221=2067/221 3)1775/221-2067/221=-292/221 Вроде так

Answer 2

To solve the expression, we need to convert the mixed numbers into improper fractions and then perform the necessary calculations.

Let's start by converting the mixed numbers into improper fractions:

7 9/17 = (7 * 17 + 9) / 17 = 128/17 4 4/13 = (4 * 13 + 4) / 13 = 56/13 6 9/17 = (6 * 17 + 9) / 17 = 111/17 3 9/17 = (3 * 17 + 9) / 17 = 60/17 3 9/13 = (3 * 13 + 9) / 13 = 48/13

Now, let's substitute these values back into the expression and perform the calculations:

(128/17 + 56/13) - (111/17 + 60/17 + 48/13)

To simplify the expression, we need to find a common denominator for the fractions. The least common multiple (LCM) of 17 and 13 is 221. We can use this as the common denominator.

[(128/17 * 13/13) + (56/13 * 17/17)] - [(111/17 * 13/13) + (60/17 * 13/13) + (48/13 * 17/17)]

Simplifying further:

(1664/221 + 952/221) - (1443/221 + 780/221 + 816/221)

Now, we can combine the numerators:

(1664 + 952) - (1443 + 780 + 816) / 221

Calculating the numerators:

2616 - 3039 / 221

Finally, subtract the numerators:

-423 / 221

Therefore, the simplified expression is -423/221.