2 3/7 -8 1/6:(4 /4/15-2.225)

Question

2 3/7 -8 1/6:(4 /4/15-2.225)

Answer 1

2 3/7 -8 1/6:(4 /4/15-2.225) = 8 1/6:(4 /4/15-2.225)
4 /4/15-2.225 = -2.15833333
 8 1/6 : -2.15833333 = -3.78378379
2 3/7 -  -3.78378379 = 6.21235522

Ответ:
2 3/7 -8 1/6:(4 /4/15-2.225) = 6.21235522

Answer 2

1) 4 4/15 - 2  9/40 = 4 32/120  - 2 27/120 = 2 5/120 = 2 1/24

2) 8 1/6 : 2 1/24 = 49/6 : 49/24 = 49/6 * 24/49 = 4

3) 2 3/7 - 4 =2 3/7 -3  7/7 = -1 4/7

Comments

1) 4 4/15 - 2 9/40 = 4 32/120 - 2 27/120 = 2 5/120 = 2 1/24

2) 8 1/6 : 2 1/24 = 49/6 : 49/24 = 49/6 * 24/49 = 4

3) 2 3/7 - 4 =2 3/7 -3 7/7 = -1 4/7