Question

9 4/7*9 4/7= 9 3/7*9 3/7= 21 7/12*21 7/12= 2 5/12*2 5/12=

Answer 1

Ответ:

Пошаговое объяснение:

9 4/7 ·9 4/7=67/7 ·67/7=4489/49=91 30/49

9 3/7 ·9 3/7=66/7 ·66/7=4356/49=88 44/49

21 7/12 ·21 7/12=259/12 ·259/12=67081/144=465 121/144

2 5/12 ·2 5/12=29/12 ·29/12=841/144=5 121/144

Answer 2

To simplify these calculations, let's convert the mixed numbers into improper fractions and then multiply them:

9 4/7 can be written as (7 * 9 + 4) / 7 = 67/7 9 3/7 can be written as (7 * 9 + 3) / 7 = 66/7 21 7/12 can be written as (12 * 21 + 7) / 12 = 259/12 2 5/12 can be written as (12 * 2 + 5) / 12 = 29/12

Now, let's perform the multiplication:

(67/7) * (67/7) = (67 * 67) / (7 * 7) = 4489/49 (66/7) * (66/7) = (66 * 66) / (7 * 7) = 4356/49 (259/12) * (259/12) = (259 * 259) / (12 * 12) = 67081/144 (29/12) * (29/12) = (29 * 29) / (12 * 12) = 841/144

So, the results of the calculations are as follows:

9 4/7 * 9 4/7 = 4489/49 9 3/7 * 9 3/7 = 4356/49 21 7/12 * 21 7/12 = 67081/144 2 5/12 * 2 5/12 = 841/144