D.h.m.of time

D.h.m.of time

D day means day
H hour stands for hour
M minute is the minute
Y year means year
W week means week

A new operation is defined: a ★ B = a + B / a-b. if 3} M = 1 / 3,
A ★ B = 1 / 3 of A-B + B 3 ★ M = 1 / 3

3*m=3+m/3-m=1/3,
3+m=1/3(3-m)
,3+m=1-1/3m,
4/3m=-2,
m=-3/2

For any integer a and B, define a new operation "△": a △ B = 2 * a * B divided by m * a + B (where m is a certain integer), if 2 △ 4 = 2, then 3 △ 7 = ()

The title is not very clear
(1) 2 * a * B is the denominator
SO 2 △ 4 = 2 is
2m+4/2*2*4=2
2m+4/16=2
2m+4=32
m=14
If we take M = 14 into the second formula, we get
3*14+7/2*3*7=49/42=7/6
(2) 2 * a * B is a molecule
SO 2 △ 4 = 2 is
2*2*4/2m+4=2
16/2m+4=2
2m+4=8
m=2
If we take M = 2 into the second formula, we get
2*3*7/2*3+7=42/13
The one upstairs copied me. I guarantee my character