Question

1)9/10-5/8 2)4 7/12-2 3/4 ПОМОГИТЕ ПРОШУ, БЫСТРЕЕ!!!!!!!

Answer 1

Ответ:

1)11/40

2)2 4/12

Пошаговое объяснение:

1)36\40-25\40=11\40

2)4 7\12-2 9\12 = 2 4\12

Answer 2

Відповідь:1) 11\40 2) 1 5\6

Покрокове пояснення:

1) 9\10-5\8=72-50\80=22\80=11\40

2)4 7\12-2 3\4= 2 7-9\12=1 19-9\12=1 10\12= 1 5\6

Answer 3

1. To subtract fractions, we need a common denominator. The common denominator for 10 and 8 is 40.

9/10 - 5/8 = (9/10) * (4/4) - (5/8) * (5/5) = 36/40 - 25/40 = (36 - 25)/40 = 11/40

Therefore, 9/10 - 5/8 is equal to 11/40.

2. To subtract mixed numbers, we need to convert them to improper fractions.

4 7/12 - 2 3/4 = (4 * 12 + 7)/12 - (2 * 4 + 3)/4 = (48 + 7)/12 - (8 + 3)/4 = 55/12 - 11/4

To subtract fractions with different denominators, we need a common denominator. The least common multiple (LCM) of 12 and 4 is 12.

55/12 - 11/4 = (55/12) * (1/1) - (11/4) * (3/3) = 55/12 - 33/12 = (55 - 33)/12 = 22/12

Now, we simplify the fraction.

22/12 = (2 * 11)/(2 * 6) = 11/6

Therefore, 4 7/12 - 2 3/4 is equal to 11/6.